FishyBusiness
Aquarium Advice FINatic
I used the carbon the first week when I got my filter then removed it for fishless cycling. I placed it in a Tupperware figuring it had 3 weeks use left... Anyway, my water is getting cloudy a little and I wanted to know if it'd be safe to put it back in for a couple weeks to see if it helps, or do I have to buy a new one?