I have a 75G tank and all the parameters are perfect. I got a small 4" Delhezi not too long ago.
When I first got him he had tiny extrnal gills on both sides the same length. I know that the external gills can grow before they disapear, however,
since I have had him the one on the left has shrunk down and the one on the right has gotten way bigger. Is that normal?

When I first got him he had tiny extrnal gills on both sides the same length. I know that the external gills can grow before they disapear, however,
since I have had him the one on the left has shrunk down and the one on the right has gotten way bigger. Is that normal?
