| White Substrate
Lately, I've noticed that my substrate is not as white as it used to be. In certain areas, it's sort of grey. Looking closely, the individual grains are grey, not white. As anyone ever had this happen? Can you add new substrate to an existing tank?
__________________
Equipment
120g Reef, (2) 250W XM 20K MH, (2) 110W T12 VHO Super Actinic, MRC MR2 Beckett Skimmer, 55g Sump, Iwaki Return Pump
Setup August 2006 |