I run a DIY spray-bar in my system.
I got a Rio 1700
and about 10-14 inches of PVC
. I cap'ed one end, than drilled 3 sets of holes. One just offset from dead-center, one just below dead-center, and one pointing straight down (to help with current along the back of the tank).
I choose the Rio 1700 because of two reasons:
(1) It comes with an adapter to easly connect to standard PVC
(2) My math figured it would be the best to supply a good bit of circulation, without blowing my fish out of the tank.
I've had it running for months, without any problems. I'm actually thinking of developing a simular system for a 130 tank I'm setting up. However, rather than using internal Rio's, I'm going to go with a larger external return pump (maybe the MAK 5
) so I can have a powerhead free tank. Between this spray bar, and SCWD
(aka: "Squid"), I'm thinking I'll be able to have a rocking circulation system.