It's 120gallons.80lpm is a lot! How big is the tank?
I agree 80lpm is probably overkill. I'm using a Hiblow HP-80 pond/septic aerator. I also use the pump for a couple of sponge filters in other tanks, and phyto/plankton reactors. Other things sometimes. I like to tinker.
I've found the pond aerator is pretty bulletproof. I've used a lot of air pumps, and they usually get a gasket tear after a year or so. This pond aerator has replaceable gaskets and is designed to run 24/7.
