flow

[LSD reefer]

Hey guys, I have a 90 gallon 48x18x24. I have two koralia 6 (2200gph) opposing, but my sand at one end won't stay. My clowns dont help any, they like to stir it up also. So my question is do you think I have too much flow, or do I just have fine tune it?

 

[marcah]

you definately have very strong movement close to 50 times per hour, but nothing that is to severe for that tank. I have just about an equivelant flow in my tank.. I would just try to fine tune it, angle the heads a little more to the surface..