I have a 55 gallon mixed tank. I did have 2x MH on my tank but the hood was crap (bought it off ebay). So I bought from marineland a hood with 6x 56w T5s (336). I have considered buying a light with a MH that totals just under my current lights' total wattage. Is it better to have T5s that equal the same amount as the halides, or are halides so much better that no matter how many T5s you have, you still are better off with MHs.