frogspawn

I have 4 24w t5 bulbs in a 29 gallon tank and have a frogspawn, torch and hammer coral and they all survive fine. Hope this helps.
 
I don't see any reason you couldn't. I've got a very nice two head frogspawn 3/4 of the way down in my 110 w/ 4 - 54w T5s and it's doing great. I would think that it would love 54w in a 20 long.
 
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