under gravel jets

[AndritVoor]

I'll be putting some UGJ's in for the first time in my 29 g. . First of all, what pwerhead should I use for them? I was thinking of the aquaball, but was wondering if anyone else had any experience or suggestions. Should I use egcrate around it? Thanks

[AndritVoor]

also the pvc piping had some adhesive from a price tag, would that affect the tank water? I removed most of it via sanding. Also, should I sand off the ink(used to put bar code and ID the pipe), or just leave it there? THanks

[deseyered]

There is a really good article on UGJ here:

http://www.cichlid-forum.com/articles/ug_jets.php