Ok, so I'm downsizing my 15gl to one of those 6.6 bookshelf tanks. I currently have a 150w MH over the 15gl, I figured the 150 would fry the little 6.6 if I used it, so I want to give T-5s a try. The Current Nova Extremes are now using individual reflectors, so would the 2X24w provide enough light for my SPS or should I go ahead and get the 4X24. The tank is 10in tall.