Just out of curiosity, why are your clams on the sand? I thought that clams need to be fairly close to the bulbs and high up in the tank. I had mine on the sand was told to move them up higher to the light????? just wondering
Would I be able to put a squamosa on the sand with 2 175w 10k's and 2 40 watt normal output actinics? or is that not enough? Its a 90 gallon tank.
-dave