I have 2 FX5's in my standard 100g. There is enough bio, but not enough mechanical. Umbee (2"-4.5") poop all over the substrate. They grew a lot this past month, so I added to Hydor IV sponge filters.
I agree with the folks, 2 FX5's on a 250-300g will not suffice. It's a good start though, but I'd add 2 AC110's and you should be good.
I agree with the folks, 2 FX5's on a 250-300g will not suffice. It's a good start though, but I'd add 2 AC110's and you should be good.