Does carbon bleach your corals ? (Kent carbon recall)

[daniella3d]

It's a good thing you posted here because from the beginning because that might have avoided a tank crash to other people. Was too late for us and a few others.

It's hard sometimes to pin point a crash. I suspect that this is not the first time it happen to people but just like me they were in doubt that carbon could cause this and never really did the connection to their crash due to carbon.

At least now with this story, we know for sure that carbon can be nasty and kill everything so in the future people are going to be aware of this possibility and risk.

On every new batch of Seachem carbon I will use, I now will test for copper after letting run in a bucket 24 hours.

Originally Posted by Casey8

One thing I have learned from this crash, I will never dose anything in the same day with my water change. Luckily enough I was doing water change and changed the carbon on different days, I had a chance to suspect about the carbon and pulled it out fast enough. Even so, it took me a day and a half before I decided to turn off the reactor. If I changed that carbon on the same day, I would have never suspected it right away and may have blamed for the water polluttant or something else. I would have killed all the corals if I continued to let that carbon sit in my tank even just for one more day. My tank was look like having a snow storm all over my corals in just 2 days, most of them were completely bleached. I was devastated didn't know what was going on my tank with no clue at that time. From now on, I will dose everything like calcium, magnesium, kalwasser, etc ... that is new in the bottle or container, one at the time and wait for a reaction before dosing another. If something goes wrong at least I know right away what is the cuprit.