i said "well thats only based on the fact that i had purchased a male jacksons that turned out to be female.
ive never bred (in the process of) them so ive got no experience in sexing them but while theyre young they all seem to have the horns and it isnt untill they begin to grow you see the growth in the horns, or lack there of, that differentiates the sexes.
"the horns they do have, if any, tend to point up, not straight out." thanks for the tip. ill keep that in consideration when i sex mine!"