I just built a Maxi-jet mod tonight. Yeah...I'm a stud. I'm itching to throw it in the tank, but I'll give it a day for the glue to fully set. It's a 1200 modified to push 2400gph. 2400!!! That's like Catagory 4 flow. My fish are going to be so pissed off. Actually, that or I'll be so pissed off when it doesn't actually do that much. haha. Anyway, my zoa's are going down hill and I don't know why. I've got lights coming in the beginning of Feb. I guess I'll see how the stuff I have acclimates and go from there. When in doubt...add more flow...buy brighter lights...buy a bigger tank. That's my new mantra.