How to tell the sex of my fish

[Brthoma131]

What's the best way to tell if my flowerhorn is a boy or girl

 

[k.mascher86]

Gotcha. Brthoma, when your writing a thread, there should be a button that says attachments, then go from there. Most of the time the male will have a noc ( hope this is the right word for it ). which is the lump on its head but females can in some cases get it too so its not a for sure way to tell.......the only sure way would be to vent it.