jerseybird97
Aquarium Advice Apprentice
I have an eheim classic canister filter attatched to my 75gal. I started using activated carbon in it. My question is when I change the filter bag and restart the canister I see this white flakey sh*t coming out of the output. I just started pumping right into the sink for a few seconds and it clears up, but what is that? Is my canister dirty? If so... how do I clean it properly?