Hey everyone! New to the site but not the hobby. I have had a mediocre 55g with hang on filter, T5 light and eBay protein filter. Decided to step it up to an innovative marine 40g. Thinking about a kessil a150w 15k light. Any thoughts? Also, there are two heads built into the tank. Is that enough flow or recommend a second source? Any tips or thoughts are greatly appreciated.