How Low can It Go???

[The Reefmonster]

I have a 75 gal. with two 250W MH. Does my crocea need to be at the top or will it be fine on the sandbed? I have it closer to the top right now but would prefer it to be on the sand bed if possible. I have read that they are the most light demanding so, I am not sure what to do.

 

[Vili_Shark]

You read right, they are the most light demanding species together with the maxima.

It all depends on the water level height, if it's shallow , you can put it on the sand (and place a flat rock under it) if your tank is high place it on the rock work.

It also depends how far are your metal halides from the water level.

 

[Electrobes]

I am going to guess you have the standard hood and tank for a 75g aquarium set up. Keeping a crocea on the ground is possible, but they are (like the maximas) rock boring clams. Keep them where you like, but do keep something under than like a rock. It also depends on what kelvin you have your halides at.

 

[The Reefmonster]

Thanks for the replies, the lights are about 10 inches from the surface of the water and they are Hamilton 14K bulbs. The clam is attached to a fairly small piece of rock that I can move around so I can move it easily yet keep it on rock.

 

[FunkieReefJunkie]

You stole my name! :frog: