Apr 10, 2015 #1 jrcordero4 Aquarium Advice Activist Joined Feb 19, 2014 Messages 151 My sandbed is turning black. What is going on with it. I read online that it is dying. Is this true? Sent from my iPhone using Aquarium Advice
My sandbed is turning black. What is going on with it. I read online that it is dying. Is this true? Sent from my iPhone using Aquarium Advice
Apr 10, 2015 #2 mr_X Aquarium Advice Addict Joined Apr 27, 2008 Messages 17,895 Location Fairless Hills, Pa. That's a low oxygen zone inside the bed. It's nothing to worry about, and nothing is dying.