Thanks everyone
Bill, I got them in on Friday and they seem to be holding well on the sand now.
@samtata - t5's are certainly proven lights and I've seen great color out of them but the ease of the LEDs is what pulls me. I do use two t5 actinics as supplements though and I'm thinking about replacing them with diff bulbs next time around.
Now if I could only find a way to get these pocci's to stop reproducing!