Blood Fin Tetra has half tail fin missing. Cause? Red eye or Serpae tetra, or N/A?
So I noticed that my blood Fin Tetra was missing the entire bottom half on his fin on his tail.
My most recent additions to the tank were 7 Serpae tetra(previously had 3 without problems) and 5 Red eye Tetras.
Do you think one of these 2 types of fish could do something like that or maybe he just got it stuck between a piece of driftwood or something?