RustyNut:
What is a sump? A sump is a reservoir that increases the total
volume of your aquarium. In its simplest form it is a tank, a pump,
with both intake and return lines.
Glaive:

RustyNut:
It also serves the additional purpose of hiding unsightly equipment
and can be used as a temporary housing for a fish.
RustyNut:
Does anyone have any questions so far?
Glaive:
Does anyone have any questions regarding what has been shared so far
or the illustration?
hefe:
fish could go in the first chamber?
Glaive:
Yes they can Hefe
hefe:
and second?
RustyNut:
Yes they could
RustyNut:
You’d separate from the pump area
Jcushing:
if you want to include a “refugium” to house fish, I would try to
have it separated from other components
RustyNut:
We’ll cover that more later
RustyNut:
As it stands a basic sump can be used to house an injured fish and
not have it have to deal with a change in water parameters
RustyNut:
Same water and same temp but no other fish to harm it while it
recovers
RustyNut:
Now to understand how a sump works you have to understand how a
standpipe works
Glaive:
On that note people should not use a sump as a quarantine for new
fish.
RustyNut:
Correct
Jeff
F.: What?
Glaive:
Yes Jeff
RustyNut:
Question?
Jeff
F.: Why did you refer to it in a “hospital” like reference
Jcushing:
I think he meant mostly for injured fish, not diseased fish
StructureGuy:
Not a hospital. a recovery tank.
Jcushing:
diseased fish should be treated in a separate tank that has a
separate water volume
RustyNut:
Yes exactly
RustyNut:
Injured not diseased fish
Jeff
F.: My bad, my hospital is my separation tank at times
geotlyrae:
How bout a holding cichlid?
Glaive:
Certainly geo
RustyNut:
Yes it works for that, but you might not want her to spit in the
sump.....
geotlyrae:
got it..
RustyNut:
it is difficult to remove the fry from most sumps
Ironmahn:
I have a question....
Glaive:
Ask away
Ironmahn:
What is the noise level compared to a canister filter?
RustyNut:
A sump is louder
Jcushing:
canisters are about as quiet as you can get...
Glaive:
How much louder depends on the pump and the plumbing
Jcushing:
a sump is as quiet as you make it but it will always be louder
RustyNut:
There is noticeable sound of moving water
ZK1975:
standpipes make a hell of a difference in noise levels, in my
opinion.
StructureGuy:
Aren’t the drilled tanks with a built in overflow quieter than the
add-ons?
Ironmahn:
Thanks.
RustyNut:
Yes Kevin
ZK1975:
Not necessarily
Jcushing:
the noise from standpipes is mostly from the air mixing with the
water in the pipe...
RustyNut:
The noise level has to do with many different parts of the system
ZK1975:
IME my add-on was quieter, but I had Dursus in my internal
overflows.. tuned up and they were quiet as a whisper
StructureGuy:
Dursus?
geotlyrae:
louder than an Emperor 400?
why_spyder:
Durso Standpipes
Jcushing:
noise levels depend on the type of pump, the amount of splashing onto
the media, and how quiet the overflow is....
RustyNut:
Let me say that a sump is not “loud”
Glaive:
http://www.dursostandpipes.com/?page_id=6
Jcushing:
Durso is one method of quieting a standpipe, there are others like
the Hofer Gurgle Buster
RustyNut:
There are many style of standpipes designed to reduce noise levels
and some of the newest designs are as silent as most HOBS
ZK1975:
I’ve only used Durso.. I loved ‘em
Ironmahn:
Rusty - on that note... So is the sound comparable to the sound of an
aquarium that is low on water running a hang on the back filter?
Glaive:
There are three sources of noise, air mixing with the water in the
plumbing, water noise in the way of splashing and vibration from the
pump
Ironmahn:
i.e. the splashing noise it makes.
RustyNut:
IM, I would say so IF the design is correct
StructureGuy:
Gotta be quieter than some of my sponge filters
Jcushing:
yes...
RustyNut:
quite honestly I think my returns makes the most splashing noises
Ironmahn:
That’s not so bad then... sometimes soothing.
Glaive:
Understand this much, you can make a sump very quiet. Somewhere in
between a canister and a hob.
RustyNut:
they sound like a trickling stream
RustyNut:
but I have them set to ripple the surface quite a bit
Ironmahn:
Nice
GoodMike:
Sumps can be noisy though
Jcushing:
right, that’s basically where mine is now, quieter than my
Marineland HOB’s but louder than my cascade canister
GoodMike:
you will always have some form of whooshing
RustyNut:
you could make them quieter by placing them lower
GoodMike:
and if you try and push too much water through them, they are loud :p
StructureGuy:
Does anyone ever hook up multiple tanks to a single big sump?
GoodMike:
I have Structure
RustyNut:
Yes Structure.... it’s popular
Jcushing:
a lot of fish stores are set up like that
Glaive:
I would consider it for a rack of tang dwarf tanks Kevin
GoodMike:
if you have fish that need the same water requirement for breeding, a
breeding rack with a common sump works well. you can mess with the
water for all of them at the same time, makes water changes easy, and
gives you a much larger volume
StructureGuy:
No concerns of one disease shared by all?
GoodMike:
quarantine them first ;)
Glaive:
That is a very big concern Kevin, in such an instance quarantine time
is a must
RustyNut:
OK moving on
RustyNut:
A bio tower is a container used to hold your bio media. Bio media can
be almost anything from crushed lava rocks, to plastic army men or
even the plastic pot scrubbers!
RustyNut:
Bioballs are a media designed specifically for wet/dry applications
and they offer very good performance with very little maintenance.
RustyNut:
Many types of plastics are slippery and do not allow the beneficial
bacteria to gain good footing on the media and as a result can take
much longer to colonize that more porous medias.
RustyNut:
However more porous media has a tendency to clogs more easily and
which is why biological medias intended for submerged usage such as
sintered glass are not a good choice.
RustyNut:
If I may move back to the overflows....
Jeff
F.: Is this not where hydro flowed systems gain advantage with
sponge filters?
RustyNut:

RustyNut:
There are a few types
RustyNut:
In the illustration, the top view (and side view) shows a HOB style
overflow
Jcushing:
here are pics of mine installed in a tank....
Jcushing:

RustyNut:
The bottom (and side) view show a built in reef ready system
Jcushing:

RustyNut:
Thanks J
Glaive:

RustyNut:
Now in the Bio tower illustration
RustyNut:
You can see how the media is layered inside the tower
Jeff
F.: What about the people building systems of many tanks
RustyNut:
At the top would be a spray bar or a drip plate to disperse the water
RustyNut:
Yes Jeff?
Jcushing:
here‘s my spray bar
Jeff
F.: For contamination Rusty?
Glaive:
modified image
Jcushing:

Jcushing:
it certainly could be done nicer, but it is effective
GoodMike:
if you want to use a central system, make sure you don’t put
anything in it that hasn’t been through a thorough quarantine
process...
Jcushing:
spray bar in action
GoodMike:
that will keep disease/contamination down. don’t use any nets, or
equip from any other tank
GoodMike:
and it never hurts to run a UV on the system too *See End for UV
side notes
RustyNut:
When we put the sump and the biotower together we have a wet/dry
filter
RustyNut:

Jeff
F.: Rusty, you keep posting this but it means nothing to those of
us who are not familiar with these systems. Any clarity?
Jcushing:
clarity in what
Jeff
F.: This diagram would work if it said which things were which in
the diagram and what they were doing Just my opinion.
Jcushing:
ok, so basically to hopefully cover Jeff’s question I'll explain the
simplified mechanics of a wet dry
Jcushing:
water in the tank spills into, or is siphoned off into the standpipe,
which drains the water down to the sump
Jcushing:
there it is sprayed onto the bio tower
Jcushing:
mechanical is first, going from coarse to fine, then onto the bio
media
RustyNut:
OK Jeff
RustyNut:
Hold on J
RustyNut:
Jeff you mean you don’t understand the flow of the system?
StructureGuy:
Jeff. The sump is below the tank. Water is pumped from the sump into
the tank. The water level in the tank is always the same as the level
of the overflow. The water goes back into the sump by gravity.
RustyNut:
OK let’s try this
RustyNut:
Turn off the pumps
RustyNut:
Now you have an aquarium full of water to the height of the standpipe
RustyNut:
and you have a sump full of water as well
ZK1975:
provided the return pipe isn’t below standpipe level :P
RustyNut:
Zk that makes no sense
Jcushing:
he means a siphon will start with the pump off
RustyNut:
OK
Jcushing:
if its low enough
Jcushing:
assuming it wont....
RustyNut:
OK we start the pump
RustyNut:
and water from the sump is pump up into the aquarium above
RustyNut:
raising the level of the water in the aquarium above the standpipe
height
RustyNut:
This causing the excess water to then drain down the standpipe back
into the sump
RustyNut:
with a forever repeating cycle
RustyNut:
at least until the power goes off :)
RustyNut:
Does that answer your confusion Jeff?
ZK1975:
or something blocks the standpipe hole :)
Jcushing:
eventually it forms a balance, the flow from the pump matches the
flow in the standpipe and the water level of the tank and sump become
stable
Glaive:

RustyNut:
Nice work Glaive
RustyNut:
does everyone now have the basic operation down?
Jeff
F.: Just trying to help people like me who won’t ask questions
Rusty, or who haven’t dealt with sumps. Now keep teaching brotha!
StructureGuy:
Didn’t one of those overflows work as a siphon? If so, the how do
you balance inflow with outflow?
Ironmahn:
So is the standpipe height... If someone was using the HOB style that
would be the containers height?
Jcushing:
ok I can touch on the HOB style...
RustyNut:
StructureGuy, no the is no siphon in a drilled tank with internal
overflow
RustyNut:
But in a HOB overflow there IS a siphon
geotlyrae:
stupid question.. standpipe. please explain.
StructureGuy:
Oh I thought one of the HOB had a siphon.
RustyNut:
Simple standpipe works like this
RustyNut:
Think of your bathtub
RustyNut:
if you placed a pipe in the drain that stood to the 18” high the
water would get 18” deep before flowing into the pipe....
RustyNut:
in an aquarium the standpipe is the height of your tank rim
ZK1975:
yeah, HOB’s have a siphon.. why else the flushing sound when water
is drained below intake :)
RustyNut:
so the water cannot get higher than the that
Jcushing:
in a HOB overflow, the standpipe is run externally, the siphon is
only there to get the water to it. it siphons the water from the tank
to a separate chamber. the top of the stand pipe in the overflow is
still the lowest point the water will drain down to.
StructureGuy:
I think it would be cool if Alex made an mpeg of this for the site.
Glaive:
I can’t create an animated gif or movie quickly enough for this
chat, but I think it would be a good idea in the long run
Jcushing:

StructureGuy:
Oh, I got it. (The siphon thing.)
Jcushing:
from that picture you can see the U tube provides the siphon from the
tank to the external box...
Ironmahn:
Jcushing - So are you saying that you want the top of the overflow
collecting container just level with the underside of the rim of the
aquarium?
Jcushing:
it maintains the water level between the aquarium and the HOB portion
Jcushing:
the water will only drain down to a certain point... once the water
level drops enough, it’s lower than the height of the slots in the
internal box
Jcushing:
no more water can siphon, the siphon isn’t broken at this point, it
simply stops, as soon as the water level goes up in the aquarium, the
siphon continues
Jcushing:
(as long as the drain pipe is higher than the bottom of the U tube in
the external box)
Jcushing:
does that make sense to everyone?
Jcushing:
the only thing that will “break” the siphon is if air gets in the
U tube
ZK1975:
U tube must have water level above U tube openings in both the inside
and outside boxes or else!
ZK1975:
anyone here have a better way of getting water in the U tube without
running an airline in and sucking out the air and replacing it with
water from the overflows?
RustyNut:
ZK, it’s clearer to say that the U-tube ends must both be well
submerged to prevent loss of siphon
Jcushing:
the U tube ends must be almost at the bottom of both chambers, with
the stand pipe height being higher than that
Jeff
F.: The picture provided shows an EMPTY tube!
Jcushing:
I suck the air out with airline tubing
Jcushing:
to get the siphon going
ZK1975:
me too..
RustyNut:
You can drill a small hole and glue a one way air valve in as well
ZK1975:
a check valve sufficient?
Jcushing:
here 's a video of mine running Jeff
http://s527.photobucket.com/albums/cc352/jcushingDC2/110/sump/?action=view&current=sump.flv
RustyNut:
I have seen it used
Jcushing:
maybe that will clear things up
ZK1975:
or would that require more force to open the valve than is caused by
water going in tube?
Jcushing:
ok so are we all good with how water gets from tank into the sump?
RustyNut:
I think at least most of them are
Jcushing:
Ok, I’ll take that as a yes... . so now the water is draining into
the sump, it goes down over the bio media, and enters the main sump
Jcushing:
once it enters the sump it flows to the pump area and for most that
is that
Jcushing:
but you can set up separate chambers in the sump to house different
things
Jcushing:
the pump should be separated from the rest of the sump so that if the
overflow were to clog the pump couldn’t pump the entire contents of
the sump into the tank
Jcushing:
(often causing a flood)
Jcushing:
this can be accomplished 2 ways, raise the pump intake to the lowest
point you want the level of the sump to drop
Jcushing:
or chamber off one section of the sump, so that if the water level
drops too low, it’s cut off
Jeff
F.: I’m not happy with the deli-cat way of showing it. not good
for beginners just trying to figure stuff out.
RustyNut:

Jcushing:

Jcushing:
what do you not understand Jeff..
GoodMike:
Jeff, http://www.melevsreef.com/what_sump.html that’s for reef,
same basic application for freshwater. I know what you mean about not
understanding, hope that helps
GoodMike:
the pic that is
Jeff
F.: Like I said, Just trying to clarify for others in the chat
since this is our best turnout yet!
Jcushing:
if you want to setup a refugium it’s a good idea to keep the fish
out of the pump section with a screen somehow
RustyNut:
OK late note
RustyNut:
Power failure safety
RustyNut:
In order to know you do not have too much water in your sump the pump
should be turned off when you fill it. IF you fill the tank while
running the lines and overflow and such will hold enough water that
you could possibly overspill the sump when the power fails...
RustyNut:
remember the excess water that was pumped up into the tank must
settle back down into the sump and be able to fit within its volume.
Jcushing:
also like it was touched on earlier if the pump fails/looses power,
the return plumbing can act like a siphon... drilling a few small
holes just below the water level will break the siphon is the water
level drops
ZK1975:
a mock power failure is a good idea :)
RustyNut:
This is why a sump size of at least 20% the volume of the tank should
always be used
Jcushing:
yes unplug the pump, make sure the sump can handle the extra water
volume, then block the overflow/standpipe, and make sure the pump
runs dry before the top of the tank overflows
Jcushing:
I like to mark the absolute highest water height in the sump
geotlyrae:
What if you not home??
RustyNut:
It just flows back into the sump to the height you filled it to with
the power off
ZK1975:
if you’re not home and you didn’t pre-check to make sure sump
levels were fine... u risk a flood of excess water :)
Jcushing:
you test first GEO, so that way you know it’s safe if it does
happen
Jcushing:
like I said, mark the highest level the sump can have, and don’t go
over that
Jcushing:
the water level in the tank will not drop, only the height in the
sump
ZK1975:
a routine check also of siphon break holes, or potential overflow
pipe blockages is also a good idea
RustyNut:
ZK, with the pump well that shouldn’t be a problem ever
Jcushing:
so questions?
hefe:
cool, so if these are set up correctly there’s no way it could
drain your whole tank all over the floor?
RustyNut:
correct
hefe:
at what size tank does it make sense to use a sump vs. canister etc?
RustyNut:
They are just as safe as any canister or HOB, but require more
knowledge to operate
ZK1975:
yeah if you do everything properly and things work as they should..
you won’t flood anything.
hefe:
I know there’s more bio filtration in a sump potentially anyway
RustyNut:
I would say 6ft tanks and larger will benefit more from the w/d sump
than the cost of canister(s)
Jcushing:
hefe to touch on safety, that’s where properly sizing the sump
comes in
RustyNut:
There is also a HUGE oxygenation benefit
ZK1975:
nothings 100%, though. Can’t say a sump will NEVER overflow
RustyNut:
Can’t say a canister will never leak
Jcushing:
sure, but its no more likely then a seal on a canister going
ZK1975:
Right
ZK1975:
it’s rare, but wouldn’t want someone thinking it’s fool proof
RustyNut:
true enough
geotlyrae:
I’m looking at a 6ft corner flow.. So I believe a sump is the only
way to go..
Jcushing:
it comes down to cost IMHO
RustyNut:
I cause more floods by doing water changes
Ironmahn:
What is a rough estimate of the initial cost of setting a sump?
RustyNut:
my sumps have never cause a single flood for me
ZK1975:
Sump, pump, tubing. clamps
Jcushing:
if it takes multiple large canisters to filter the tank a sump / wet
dry might be the best bet
RustyNut:
IM, Depends on how DIY your are
hefe:
sumps trickle the water over media that’s not fully submerged and
it works, so how can a canister have good bio filtration if there’s
so much less oxygen?
Jcushing:
depends greatly on the size of the tank IM
Glaive:
The largest cost is typically the pump unless you pay for a
commercially produced sump
ZK1975:
yeah, u can do premanufactured sumps with fancy biocages and such..
Jcushing:
large tanks need large pumps = more expensive
ZK1975:
the more detailed, the more you’ll spend.. I’ve seen them as high
as $300 for a sump
Glaive:
is your 6 foot tank a 125 gallon?
geotlyrae:
How big a sump for 120 gal?? 150 or over?
RustyNut:
hefe, the W/d just has supercharged bacteria
Jcushing:
my sump cost me roughly 150 for a 5ft tank
Jcushing:
which is pretty much what I paid for a single canister
RustyNut:
20% of 120 = 24g
Glaive:
for a 120 or a 150 I would consider a 30 gallon sump
RustyNut:
20% 150g = 30g sump
Glaive:
if you have the space you can get very creative with hat your sump is
mode of I have known people who used rubber maid containers, with
those one should consider framing them in
RustyNut:
20% of 200g = 40g
Seedy:
Considering a new Eheim will set you back $250-$450....
Glaive:
if you are willing to modify an older used tank you can really reduce
costs
Jcushing:
yeah totes aren’t meant to hold water so they can tend to bow with
the weight of water
Jcushing:
the most effective solution to me is a used tank
Glaive:
it also helps to have a tank with built in over flows when one is
dealing with a larger tank
AulonocaraFreak:
unless life Alex said, you can frame it in
Jeff
F.: Tanks are SO cheap nowadays!
Glaive:
It really comes down to how much DIY you are comfortable doing
Seedy:
What about commercial overflow/lifters?
Jcushing:
20 - 40 gal tanks can be had for the cost of a new Sterility tote
RustyNut:
Both my sumps with pumps and biomedia and all accessories cost me
about $350 COMBINED
Seedy:
The ones that don’t require drilling
AulonocaraFreak:
but if your options are buying a tub or using an old tank that’s
lying around, I’d definitely use the old tank
Ironmahn:
So now the pump, how do you determine what you need?
AulonocaraFreak:
the old tank would definitely be easier to convert
Glaive:
I myself am willing to make my own internal overflows if I were not
able to find an inexpensive tank with prebuilts
RustyNut:
Pumps are determined by your overflow
RustyNut:
All overflows have a maximum flow rating
Ironmahn:
Meaning?
AulonocaraFreak:
you have 4 square sides verse a tote that doesn’t have any straight
sides
Glaive:
how much water the overflows can handle moving
RustyNut:
so if you have a 600gph overflow you want LESS than a 600gph pump
flow
AulonocaraFreak:
the bigger the tank, the more overflow you need
RustyNut:
AF, Not true really
AulonocaraFreak:
really?
Ironmahn:
How do you know the overflow rating?
RustyNut:
Ideal GPH for W/D systems is between 500-and 700gph
Glaive:
in the case of a 120-150 gallon tank I would want dual over flows
with 1 inch pipe stands
Jcushing:
for an overflow, it should be listed
Jcushing:
typically, 1” PVC is 600gph
RustyNut:
You can push more water through and get more capacity, but above
700gph your get diminishing returns
AulonocaraFreak:
I see what you mean
Jcushing:
it’s always better to have a margin of safety
AulonocaraFreak:
that definitely makes sense
Jcushing:
you can buy too much pump and turn it down
AulonocaraFreak:
so would you put in 2 overflows and 2 returns also? or do you just
have 1 return and double your pump size?
Jcushing:
bypass some of the water from the pump back into the sump
Glaive:

Glaive:
this is an illustration
Glaive:
Depends on what you want to do
Jcushing:
for a 6 ft tank that’s not drilled, dual 600 gph overflows would be
adequate
Glaive:
I would consider two smaller pumps if the energy usage was better
Glaive:
this way if you did have a pump failure you would still have
filtration
AulonocaraFreak:
but also if you only have 1 pump, and that pump fails, wouldn’t you
like to have a back up solution?
Jcushing:
yes
Jcushing:
2 pumps, one outlet on each side of the tank would be nice
AulonocaraFreak: so
where do you put your overflows in that case then?
AulonocaraFreak:
do you put them both in the middle?
AulonocaraFreak:
or do you center them on each side of the tank?
Glaive:
you could do dual wide with two stand pipes
AulonocaraFreak:
I see
Glaive:
let me see what images I can pull up of dual systems
AulonocaraFreak:
sounds good
AulonocaraFreak:
it’s always easier to see it on paper
AulonocaraFreak:
or screen in this case
Jcushing:
more questions?
AulonocaraFreak:
so the rule of thumb is to have a sump 20% the size of your tank?
AulonocaraFreak:
what’s the rule of thumb for how much gph you have for flow?
Jcushing:
you typically want 5-10x water turnover per hour
Glaive:
http://www.saltwatertogo.com/truvu-aquariums/50-gallon-tru-vu-aquarium-model-50-bow-front-aquasystem-36x18x20-.html
Glaive:
okay that tank has a built in overflow
AulonocaraFreak:
alright, for example, on a 120 gallon tank you want a minimum of 600
gph flow
Glaive:
it is a centered one
Jcushing:
if you have other filters or power heads you can adjust accordingly
Glaive:
it should have dual returns one in each upper back corner
geotlyrae:
how many gph would a 30gl usually do?
Glaive:
it’s all in how fast you can drain the water
Glaive:
you could conceivably run 1200gph through a 30 gallon as long as you
had the overflows that could handle it
Glaive:
I would likely stick with 900 gph myself
Glaive:
900gph is 15 gpm, which works out to 1 gallon every four seconds
Jeff
F.: 900?
geotlyrae:
I’m doing 800 with my 2 emperors on my 46gl bow
Glaive:
as long as your overflows can handle it and you make sure your water
levels are right you would be fine
Glaive:
one 20 gallon wet dry sump at 400gph would destroy your emperors
Glaive:
no comparison
Glaive:
yes Jeff?
geotlyrae:
ok... got the message..
Jcushing:
don’t forget geo, that when speaking with sumps, they work in
actual GPH where canisters and HOB’s are listed a lot higher than
actual
Glaive:
elaborate on your questions
RustyNut:
geo, also the higher O2 content in the biotower would also beat any
HOB for surface area
Glaive:
in a sump you are also getting maximum oxygenation in the media and
you are getting 100% contact or close to
geotlyrae:
so 900 should be ok..
hefe:
good night everyone. thanks for running this. very informative
AulonocaraFreak:
i.e., the Fluval FX5 is rated at 925 gph, but only really does
somewhere around 600
Jeff
F.: Isn’t double filtration the norm?
Jcushing:
sure
Glaive:
the norm when dealing with manufactured filters in 8-10x tank volume
on tanks 75 and under
Glaive:
once you get bigger 6x is fine
geotlyrae:
I looked at one at Big Al’s but was not sure of the brand.. Perhaps
their own..
AulonocaraFreak:
so if I ever find one, I have an fx5 and need a second suggestion for
a 125 or 180
Glaive:
I would be perfectly comfortable running 600 gph on a 125 if it was a
wet/dry sump
Jcushing:
I have a 350gph canister and about 550gph going through the sump in a
110 gal
AulonocaraFreak:
alright, so I might want a smaller wet dry also?
AulonocaraFreak:
that’s what I was kind of wondering as well Alex...
geotlyrae:
wasn’t that a minimum??
AulonocaraFreak:
wasn’t what a minimum?
Glaive:
I would just run a sump myself maybe drop a biowheel in the bio tower
in case of pump failure, that would give you seeded media to start a
hob immediately
Jeff
F.: Typo yes...I run a cascade 1500 and an emperor 400 on a 70g.
I’m all into filtration.
geotlyrae:
600 gph for a 120gl
Glaive:
that would be fine geo
AulonocaraFreak:
yes, that would be a minimum
Glaive:
if it was a sump
AulonocaraFreak:
but that also depends on how heavily you stock your tank
AulonocaraFreak:
and it’s not a bad thing to have a little extra filtration
RustyNut:
it also depends on the volume of your biotower
AulonocaraFreak:
I might end up with the FX5 and a 600 gph sump
Glaive:
Filtration is kind of complicated, the reason you can get by with
lower flows on wet dry sumps is because all of the water that passes
through gets in contact with the media
Jcushing:
I had a cascade 1500 with a penguin 330 and 350. replaced the 2 HOB’s
with the sump
Glaive:
If that is your line of thought AF I would just consider 900gph+ of
sump
Jcushing:
you could upgrade a 600gph sump to a 900-1200 gph sump for very
little
AulonocaraFreak:
I had a Penguin 350 that got replaced with a Rena xp2 :)
RustyNut:
the bacteria have access to so much more O2 it allows them to
detoxify at maximum capacity
Glaive:
another usage I think we missed on the sump was a place to store
seeded sponge filters
Jeff
F.: I stock my cascade properly and it’s very effective
RustyNut:
?in a sump........
Jeff
F.: very
RustyNut:
True Glaive
Glaive:
sure why not Mr. Nut, they are out of sight and even sitting in a
center chamber would contain enough bacteria to jump start a fry or
hospital tank
RustyNut:
it’s a great place to keep your sponge filters for emergencies
Glaive:
ahh missed where your Q was directed
Glaive:
or a few extra biowheels
RustyNut:
I think concludes our little sump chat
*UV
Side Discussion
AulonocaraFreak:
how do you guys feel about UV Sterilizers?
Glaive:
I do not like them
Glaive:
I consider them a waste of money
RustyNut:
part time use only
Pam
Chin: I don’t think you want a UV system on your fish tanks.
why_spyder:
UV would kill of good and bad bacteria, right?
GoodMike:
Pam, they are awesome
RustyNut:
Mike, UV has its uses but should not be used constantly
Pam
Chin: Mike, I think you are wrong, if you have a wholesale house
and you are moving fish in and out that is one thing, but if you have
a UV system on bank of tanks you are asking for trouble your fish are
not going to live in anyone else’s tanks.
GoodMike:
I didn’t say to run it constantly ;)
RustyNut:
What Pam means, is that an untested immune system is worthless
GoodMike:
in a wholesale/retail situation it helps keep spread from tanks. In a
home situation, if you do have an outbreak of something, it helps
reduce the damage to turn it on