Carbon can definitely do that. For this reason I try to keep up with my carbon maintenance. If I let it slide (ie, miss a change schedule), my corals definitely get shocked when I do get around to replacing it. If I replace it sooner (on schedule) there's definitely less shock. I do love how carbon scrubs the water clean like that. Because I can see right through my tank to the other room it is very noticeable when my carbon is running out. The water goes from crystal clear to a bit blurry/murky/discoloured. Also, my carbon reactor (TLF150) crapped out once and I had to run it passively for a while. It didn't quite do as good a job as the reactor.
|