question about clams...

[marvinsae]

i've been thinking about purchasing a clam. i hear squamosas are the easiest to keep and should be placed on the sand bed, however they lack the colour that i'm looking for. been doing a bit of reading and i've read that i should probably keep a larger size clam (above 3") since they are easier to care for. any other clam suggestions? what should i feed them? where to place them? as of now i have a 65 gallon 34 wide 24 tall with a 250w mh pendant. should this be enough lighting? im thinkin of purchasing a 2 bulb fixture for T5 also in the near future. so should it be ok for now?