Hello all. I’m setting up a brand new tank with a 34” glass sump. I’ve setup 2 pumps - one main and one for a UV. The main pump is OC in the last chamber and the UV pump is in the skimmer chamber - middle. My buddy said maybe it’s better to split the main pump and add a ball valve. Having 2 pumps might produce more heat. Will adding an additional pump be a huge issue ? Thanks in advance !