I am currently planning out a 20g long lps reef tank to replace my 10g. I want to take it a step up and get better equipment. First off, I don't know whether a pair of Kessil a80's or an AI prime hd would be a better fit. I haven't been able to find any other lights in that price range that gives great performance but doesn't break the bank. I am also thinking of using a small canister filter as I want to have plenty of filtration. Also, any advice on where to start with a budget DC powerhead would be great. If you have any experience with 20g reef tanks, I'd love to hear from you and your thoughts on anything regarding equipment. And if you don't have any experience, well I'd still like to read what you know! Thanks!