Does anybody make a gravel vac that catches the mulm without removing water from smaller tanks? I'm talking 20 gallon tanks with HOB
filtration. I'm most interested in getting algae, uneaten food, dead leaves, etc. between water changes. Perhaps a recirculating pump with a catch filter of some type I could hook my python to would be a good starting point. If I was to make my own, what would be the best type of filter to build/use? It would have to withstand a full washout with almost every use.
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