Lighting for clams?

[FishGeek]

yah but can you afford to replace the bulbs every year. A 400w 20k bulb costs over $250 and 175w 10k bulbs are $200 a piece. That's $650 a year on bulbs alone plus electricity? Do you really need that much light for an 18" deep tank. I think it's over kill!! I say go with the 2 175w at 10k. Better spread of light and you wont melt your softies.

Simon.