Posted: Mon Jun 15, 2020 1:00 am 180 Gallon tank Saltwater->Freshwater
So i recently bought a 180 gallon used tank that was used for a saltwater aquarium. The person sold me the whole tank and stand for 300$, but the whole tank is just covered with residue and coral parts I believe, and since it's an overflow tank it's in the part that goes to the canister filter. I don't know what to do to clean that part out and the whole tank in general?