New
#1
Strange aquarium growth
I keep freshwater tropical fish and ever since I started using a different brand of fish food flakes (from China that smelt rather rank a real strong fishy smell) my tank is gradually being taken over by a growth of what looks to all intents and purposes a dark green / grey growth of cat's fur.
It grows just about on any surface including some of the air tubing and has reached the stage where I have to clean the hang on filter inlet twice a day.
Have tried anti fungals and change water etc etc to no effect.
Anyone got any idea what this pest is and how to get rid of it please?