5 day blackout did nothing. They actually covered the rockwork and sand again in the dark. Lights came on today (blue only) and I've dosed 2ppm silicate. I'm going to continue dosing H2O2 and Waste Away daily. Pods and phyto are on the way and should be here sometime next week. I recently saw a thread about treating dinos via carbon dosing after lights out, so I will also be dosing MB Clean at night.