Two or three times a week I put an algae wafer in my CPD/pygmy cory tank. They will all happily pick at it for hours but how long is it actually ok to leave in the tank before I remove whatever is left?
Thanks
Two or three times a week I put an algae wafer in my CPD/pygmy cory tank. They will all happily pick at it for hours but how long is it actually ok to leave in the tank before I remove whatever is left?
Thanks