ZebraPleco.com • The complete Hypancistrus zebra resource

This group was bought about 18 months ago. The smallest were 8 months old and the largest a year old so they are approx 2 and 2.5 years old respctively. The smallest are just over 2" TL

Hope the pics are clear enough and please excuse my rubbish paintshop numbering

1 looks like a possible female and rest of them look like males.

I would say the same, still young fish but some defo males.

These threads are always interesting. Can you guys mention which one you think is a female and why? What characteristics about the rest indicate males?

Thanks for sharing,
Glen

Thanks guys for your opinions I'll give them another six months and work myself up to catching them again

No 1 is thought to be female, even though not the best pic to see.
The other males are sexed by head shape, bristles on fins & amount & length of whiskers.
If you click on the drop down section of home it shows you a section of sexing fish & lots of other information.
Hope this helps.