Hi @laritheloud, just wanted to provide you an update. The 2 that I had are definitely both females. I tried to get a male for the tank, but my LFS isn't able to get less than 6 at a time, so not really viable for my 16-gallon tank. I found I could get captive-breds, however, so I ordered one and got a male. 🙂 I thought they wouldn't have much of an interaction due to being captive vs. wild-bred, so I was going to re-home the females. However I recently noticed the male making a bubble nest?? Is he courting the wild females? If they'll be courting or pairing up, I'd be inclined to keep the females!
Thanks for your time and thoughts as always. 🙂