Just hooked up a Fluval FX5 to me 92 gallon low tech planted tank....this thing is a monster. Got the outflow coming out of the midddle back corner, and the whole tank is getting water movement. I can't see a single dead spot. Bad news...I don't think discus could every handle this amount of flow, though me large angel is right in the middle of the tank, hovering effortlessly. IS this too much filtration?