Yesterday evening i found a small patch (about 1 1/2 inches diameter) of strange small living things on the front glass of one of my tanks.
The creatures are probably less than one millimetre long each but you can see them moving. They are white.
Any ideas what these are? Are they harmful?
The creatures are probably less than one millimetre long each but you can see them moving. They are white.
Any ideas what these are? Are they harmful?
