long green hair algea and lotts of it.....

no fish and no corals you can turn the lights off for a month if you want all rock needs is salt water and cirulation and not much of that pluss heat helps.

Billpluck as much as you can while the lights are out as when the algae dies it releases the phosphate back into the water. skimm wet and this should help take some of the excess dead free floating algae out also.

Bill