return pump question
I have a 30 gallon with sump (10-15 gallon?). I need to increase the flow in my tank because the return pump is very weak - the one that came with the filter.
I was wondering what i could get away with because the tank will have to have a balance between overflow and return, correct? I am new but this seems logical i cant just put in the biggest pump i can or it will mess up the level of water.
Can anyone advise/help me out to understand this.. What is the best flowing return pump (and quiet would be awesome) i can get away with with that setup. The drain pipe is like 1" wide