I just bought a brandnew AQUATOP CF-300 Canister Filter, when I open the box, it look vet and the water feel like oil.
I thought this is no problem since it just run fine. the media is only bio-ball and Ceramic biological media.
After 2-3 days of running, I see some stuff came out from the filter. Anyone knows if they will have any negative problem on my tank and my fish/plant? Please look at the following picture
Thanks
I thought this is no problem since it just run fine. the media is only bio-ball and Ceramic biological media.
After 2-3 days of running, I see some stuff came out from the filter. Anyone knows if they will have any negative problem on my tank and my fish/plant? Please look at the following picture



Thanks