What sized Stream should I get, 6000 or 6100?

[tonggao]

I have a 120G (48"x24"x24") BB tank, and like to keep mixed corals in it, and like to keep the bottom clean. Could someone tell me if I should go with two 6000(ts21) or two 6100(ts24) with 7095 controller? Thanks.

 

[rvitko]

If the focus will be SPS get the 6100's otherwise the 6000's would be best. The 6100's would be more likely to keep the bottom clean but this won't work if a lot of softies (non leathers) and Euphyllia type LPS are part of your plan.