[Charlie97L]

yeah that's true, just make sure if you do that that you get a clam that likes being on rocks vs. the substrate. if you get a substrate one with just PC's and try to put it on a rock it'll keep jumping off, and then not get enough light.

thanks for correcting me, i didn't mean you absolutely had to have MH, that's just the easiest thing to do to keep them. i should have been more precise.