Sexing Discus

[madaboutfish]

Hi,

I have a pigeon blood pair which produced 75 fries which are now about 9 months old. The male parent has been observed to have a more pointed dorsal fin than the female. Today I am hoping to get a few pairs from 8 of the largest fries that were kept. However only 1 off the 8 fishes seem to have the pointed dorsal fin. Is there a possibility that another fish from the same spawn may be a male despite having rounded fins? Do the female fishes have an earlier growth spurt before the males ultimately overtaking them in size?

[sunshinediscus]

Both males and females can have pointed dorsal fin although it is much more common in males. Some males have rounded dorsal fins. Growth rate, generally males grow quicker and larger but again not in every case.