yes most definitely its designed to go with 4 but with 600gph you could put with 8 with some t fittings mine only has 20gph designed for 1 airstone and i use 2 with no problem your fine man
I read that 1 watt a gallon is good for hydro. At least a half watt if you cant do that. BGHYDRO has awesome deals on pumps. those eco air pumps that have multiple nossles have many watts.