luke williams
New member
Last night I noticed a small rock on the side of the tank. This morning, the 'rock' has moved to the other side of the tank. I was completely baffled until I noticed this rock moving slowly. I can only assume this rock is a snail. If it is, how did it get there? What does it do? Should I remove it? And will it harm or damage my goldfish, which I am getting later on today?