sorry guys, forgot about this post
we have the standard lighting that came with our setup, ill have to ask the so when he comes home. and why is it too small for those fish? I know the keyholes get 4-5 inches, they were itty bitty things when we first got them, and now they are about 3/4 of an inch. they will be getting their own tank soon. as soon as we find a place for another tank, haha