Phosphate lowering questions

[CastAway]

We need to find a non-aquarium resource for GFO, and buy it cheaper and in bulk. LOL

It's flipping rust! Maybe it can be made?

 

[Steve Dillon]

We need to find a non-aquarium resource for GFO, and buy it cheaper and in bulk. LOL

It's flipping rust! Maybe it can be made?

My father truck is full of rust. But I didn't put flatworm exit in my tank so...

 

[Steve Dillon]

I'm going with a reactor and I'm going to mix GFO with carbon. It's a pain with my current sump