I made the mistake of getting one of these when i started, the ones at the LFS that use them work great (can't figure it out), mine seemed to fill the tank with bubbles
[hr]
, even after some minor adjustments, it seemed to do it's job the first few weeks, but then just started filling the collector with water. now it sits in on a QT tank just for water movement.
Michelle, maybe you could help us out by telling us what mods you did, and possibly a few pics?