Too much current?

[Troy F]

Jonathan, I had a 1" sandbed of finer grain aragonite. It can be a bit of a trick to find the right positioning of the waterflow.

I had my powerheads set up all over the place. Initially just in the upper half of the tank but later, after some recommendations from friends, moved them lower as well. Obviously you can't point the output right at the sandbed. I had four MJ 1200, and two Hagen 802s in there as well as a LG2MDCQX? on a closed loop.

I recently saw a fellow running one of those Ampmaster 3000 on a small tank (68 or 72gal) with the fine oolitic aragonite. I had to see it to believe it but he had no problems with the sand. The point being; you can get an awful lot of flow in your tank, the corals won't mind at all.