My nan has a 64L tank and has 7 guppies, 2 black tetra and 1 neon.
we have done a water change and checked the water and the levels are fine. We haven't added any fish in the past month so there haven't been any changes to the water either.
One of the guppies who we have had for about 4 months and so is one of the older ones out of all of them. The fish has started to literally blow up into a balloon. It is definatly a male due to the anal fin.
What could be happening?
thanks
random919
we have done a water change and checked the water and the levels are fine. We haven't added any fish in the past month so there haven't been any changes to the water either.
One of the guppies who we have had for about 4 months and so is one of the older ones out of all of them. The fish has started to literally blow up into a balloon. It is definatly a male due to the anal fin.
What could be happening?
thanks
random919