Hi All,
For the last 5 days I have 1 neon Tetra (from a school of 14) that seems to have a protrusion from his rear fin. Hes been desperate to swim straight for days but ends up going all over the place (upside down and face up). Hes clearly effected by this lump in his tail. I thought it was the last for him two days back - but hes a strong little fighter and will not give up. I juss don't have the heart to put him down.
Any suggestions?
For the last 5 days I have 1 neon Tetra (from a school of 14) that seems to have a protrusion from his rear fin. Hes been desperate to swim straight for days but ends up going all over the place (upside down and face up). Hes clearly effected by this lump in his tail. I thought it was the last for him two days back - but hes a strong little fighter and will not give up. I juss don't have the heart to put him down.

Any suggestions?