I agree, looks like one, female, or a washed out individual.
This is a species that prefers back water, and pH below 7 (6 is even better), and lives among leaf litter (so why tannins are abundant).
If its a new addition might be why it looks washed out.
What are tank mates? What are your water parameters?
Thank you for the further insight. Can't comment on water parameters, I still need to get a test kit. Just that I've been doing 50% water changes every 4-5 days. I hadn't known or read about the tannis, but it's joyful info for me. (I have Almond Leaves already).
I picked them up (all 3) roughly 3 weeks (or more) ago. Good deal and they were something we'd wanted to get into, per say. They've been in the tank with 2 Albino Bristlenose since I'd gotten them. 29g.
A week ago, I picked up 3 Albino Kribs. Later realizing I couldn't put them in my 35g as I'd hoped (possible harm for my Julli's) so I'd added them to the 29g with the Apisto's, as I sorted things out. Added a few more caves and such, as well. Then, as the week progressed, I noticed the Kribs were contained to the center of the tank. The Apisto's had claimed the caves and such. Regardless of the size difference, the Kribs appear to be almost double in size.
But it was the first I was seeing the Apisto's. They've been quite shy up 'til now.
So this weekend I ripped the tank apart and removed the Kribs (Sunday). Did something strange/different with the tank (29g), created what we call our "garbage can" tank (something we'd joked about when we had our tanks previously. My kids and I, so it's things we'd kept for). But it's too bright in a way ..... Tannis will help greatly. But the Apisto's are staying visible, in their new surroundings. Even though their original hideaway is still there.
At this point I wanted to verify what I had. It's what we wanted, so that's a bonus. I'd been suspecting they were all female and it's appearing that way. All the photos I'd seen so far were males, I needed help.
I was browsing the site tlindsey mentioned, and wow yep .... it's another learning curve.
I appreciate the help. Thank you. In the past some of the mods (and members) were fabulous for me. Even when my *** was handed to me LOL. So thanks again, I appreciate ALL the help.