i believe the death of my metallic open brain killed like half of everything in my 12 gallon nanocube. i moved everything to my 55 but i want to keep the nanocube, since i put so much time into it. now, do i keep the sand or dump it?? clean anything?? there's just sand and the ugly water. the filteration is still in there. should i clean everything. dunno what to do.... :(



