I didn`t know where to post this, so I posted it here. I have a Coldwater tank with a light (not sure about any details of it, but I can find out) and an aquarium plant. In my tank I have a goldfish (Larry) and he has grey almost black spots on his sides in front of his gills. They appeared a couple of days ago and have slowly started to spread! He has been flicking his tail out as well, not against things, but just in space (if you get what I mean). What can I get to cure him, before it spreads to my other fish??
Thanx for any advice!
Thanx for any advice!