The water is fine, it stays lovely and clear, but the glass goes green REALLY quickly. The fish can hardly see out! Needless to say, no-one else in the house bothers to clean the tank, it is left to me every time.
I don't mind the cleaning of it, it's just that I have to clean it SO often.
It doesn't sit in direct sunlight which I know can make the glass go green, but the room is quite a light one. Short of putting it in a really dark corner, I don't know what the solution is.
Does anyone have any ideas before I relegate the goldfish to the pond outside and throw the tank in the dustbin!?!?!