will I have enough light for a clam

[Cruella]

hey guys I was wondering If I would have enough light for a clam. I have a 75 gallon tank with two 175 watt metal halides 14,000k. the tank is 18 inches deep?

 

[Giovanni]

You should be ok if you put them up in the top 1/2 of the tank in a bright spot.

 

[edwing206]

it will be fine.

 

[Sk8r]

I have a nicely growing crocea at 20 inches under the surface of a 250w 10k Ushio that sits 9" above water surface; I replaced that with a 250w 12k Reeflux, and now the clam is a little more withdrawn, perhaps getting more blue light than before.