I was messing around in my garage today and I came up with an idea. A canister filter full of gravel, to act as a biological filter. does this seem like a good idea? The water pretty much trickles down through the gravel and gets returned to the tank with a pump.
Also, does anyone think it would be a good idea to put a "back flushing" bypass in there so the gravel can be cleaned? (the waste water could be taken out as a PWC
Just another random idea. Summers for me are rather boring.