Help!!
Cherry barb female was plump (like the other 4) when arrived, however now has a swelling on one side which has gone red, presumably due to stretched skin.
Looks like a hard pea sized lump under the skin. Am treating with pimafix and melafix and have had some ammonia issues, currently being treated by a round of seachem prime and stability. Will do 25% water change this week due to melafix/pimafix. Eating and swimming fine.
Question is do I remove and euthanize as have no hospital tank available or do I just hope it's not parasites which may burst out and spread? Had barbs now for about three weeks.
Ammonia 1.0 (captured by prime) pmm
Nitrates 0
Nitrites 20 ppm
Temp 26' C
Planted tank with juveniles only
6 cherry barbs
11 neon tetras
2 rainbow fish
3 guppies
1 pleco
Picture of cherry barb to follow.