My barb is now aprx. 4.5 inches long. The information I find is that the redtail (Barbonymus altus) and the regular tinfoil barb (Barbonymus schwanenfeldii) both have a black marking on their dorsal fin, but the redtail lacks the red, and it also lacks the black submarginal lines on the caudal fin.
(I don't quite understand.) Does that mean the redtail has NO red in his dorsal? Also I don't know what is meant by 'black submarginal lines'.
Maybe I've got sawdust in my head but I still am confused as to whether my tinfoil is a regular one or a redtail one.
He is currently the sole inhabitant of a 38 gallon tank.
Now; if he is a true redtail, I further understand that his max. length will be 8", but if he is a regular tinfoil, he can attain 14". That is one BIG difference, so you see why I'd like to determine exactly which he is.
Now, given that information to go by, let me add some pictures -
The fish in these pictures are left to right -
Redtail tinfoil _____My barb
Regular tinfoil_____My barb
Regular tinfoil_____My barb
(I don't quite understand.) Does that mean the redtail has NO red in his dorsal? Also I don't know what is meant by 'black submarginal lines'.
Maybe I've got sawdust in my head but I still am confused as to whether my tinfoil is a regular one or a redtail one.
He is currently the sole inhabitant of a 38 gallon tank.
Now; if he is a true redtail, I further understand that his max. length will be 8", but if he is a regular tinfoil, he can attain 14". That is one BIG difference, so you see why I'd like to determine exactly which he is.
Now, given that information to go by, let me add some pictures -
The fish in these pictures are left to right -
Redtail tinfoil _____My barb
Regular tinfoil_____My barb
Regular tinfoil_____My barb