Does carbon bleach your corals ? (Kent carbon recall)

[Casey8]

Originally Posted by kien

I don't think that i'll be easy to tell if a particular batch of carbon is good or bad

Another thing I'm worried about now is, once you put bad carbon into your tank, how easy would it be to get all that nasty stuff out??? It's almost like you have to flush the tank just to be sure.

No wonder my skimmer had pulled a lot of black colored in the first 2 days.