saltwater6900
New member
Hi, its another light question, but i was wondering it there is a big difference between the 12k and 20k with growing corals ( zoas, shrooms, rbta, ricordia, no hards) becasue i like the look of the 20k but i dont want to lose the growing power that the 12k has so if you could help that would great thanks btw they are 250watt