I have a 100 gallon that has been up and running for about 3 years now. I have 110 VHO x 4 bulbs that run in the day and then 2 110 VHO bulbs that bring the tank down at night. SO basically 440 watts. My tank is 5 ft long so not very deep. What type of clam do people recommend? I have other corals and inverts...dont know if this matters. Let me know what all you need to know to determine this. I have been researching the deresa clams...