sallyann
Fish Fanatic
I was just wondering if this is normal, I have one goldfish in a 20 gallon tank, cycled etc, everything is fine in the tank, and i test it weekly with a master test kit, but just in one corner of the tank I have noticed a line of bubbles forming, i do think the goldfish makes these, the tank has a fluval 1 plus filter, and the water is very clear.