So I now have a 125gal (72x18x24), I have an FX5 for filtration along with two powerheads. It will be housing my gold ck, a synodontis, and maybe my red devil, depending on aggression. I think the fx5 should be sufficient for filtration, if I'm wrong, let me know. As far as setting up the tank, I'm going to use the gravel I have in my 3 other tanks to fill it. So, does this sound good? (I am aware that my ck is going to get huge and I will need a bigger tank eventually.) Is there anything I can improve on or should know about the fx5 before setting this tank up?

