I have had my tank running for almost a year. I just got a uv sterilizer and waiting for the apex flow meter to arrive. What's the best way to plumb it in . I though having it on the outside of the stand and into one of the return lines. It's a dual corner overflow . But I also heard it's best to have both return plumbed onto the uv sterilizer instead of just one. Or would I be better off just plumbing it in and returning the water into my sump so pulling from sump and returning it to the sump. Any advice please. Ty.