Originally Posted by larrynews
i have an extra bio wheel filter sitting around could i use that , and not use filters in it and instead put algae in it for pods to grow and get dumped into the tank, i also have another filter i'm using sorry to confuse
I would say no. I've never liked bio-wheel filters. They get clogged up very quickly and do not have much available living quarters for pods. I'd be nervous using it on a horse tank, for water quality reasons. Now if you you bought a refugium and added algae, absutlutely!!!