So i got this new tank and am planning on having a professional come out and get my 200gallon fish tank drilled with 3 holes. 2 for out 1 for in. This is a glass aquarium if anybody is wondering. Quick question, what size hole should i request and what would be the water rate flowing out? Need to know in order to start looking for a sump pump. Thanks again, here's 2 pictures of the tank i'm going to be working on. 






