Okay so i got this 150 gallon tank that i set up, there is a sump filter attached to the tank so currently im letting it overflow into the sump and blowing the water out with a 1850l/h powerhead. I want to make it so that the water quality would be superb, i'm thinking of putting in another 3000l/h powerhead connecting to the undergravel filter and the overhead filter, is that a good or a bad idea?

