Spot on yellow leather

[Undertaker]

Can anyone tell me what this spot is on my leather?

 

[Broadfield]

It's hard to tell what's going on from the image... is the "spot" still there today? Are the polyps retracted in that area and/or is there something actually on the leather?

 

[Undertaker]

Didn't look this morning. The polyps in that area are not expanded. Last night after the lights where our and all its polyps went in it was just a tiny little spot. There isn't anything on it that I could tell. And I don't believe my fish messed with it. I will check tonight when I get home, and see if is still like that. I just moved it and glued it in place . I'm wondering if maybe I got some glue on it. I don't think so but, it could be.

 

[Undertaker]

The spot is still there. Hasn't gotten any worse yet it's still there