dparks87;4954743; said:What kind of substrate do you have?
Gshock;4955874; said:Probably the slime coat shedding. Comes from either crappy water or a load of stress.
Gshock;4956271; said:Looking at your other thread, your tank is too small and that miniature HOB filter probably isnt enough to keep up with your ray's bioload. Only thing you can do now is do a lot more water changes and get a bigger tank and filter.