I'm thinking of selling the FX5. Maybe trade for an AC110 and $75. In a tank like mine, the water flow through the live rock is the best filtration. Maybe I'll do that and add another Koralia.
Bring me an AC110 and $75 and you got it. It's all cleaned out and ready to go too! PAcked with fresh media. All you got to do is clean the hoses from salt creep.
Installing a sump on my 300 this coming weekend, not sure what I am going to do with the 2 Fx5's that will no longer be needed. I may be looking to sell them.