Hi there,
Pezcuale passed away during the night.

He really looked bad before I went to sleep - just hovering in a corner.
There were no new plants or fish - he was the last of a group of 4 that I rescued about 7 months ago (the story is somewhere in one of my posts). He was actually in the worst shape out of the 4 when I got them, and he ended up living the longest.
I think all the fish were originally bought in Walmart - which could explain why they didn't last.
It is very possible that his head was more swollen - not his eyes sinking in. He has always been on the smaller side - I just thought he was younger than the others

and was still growing. It all just seemed to happen so fast. He has always been rather shy but still active. He was all by himself in a 29 gallon tank that had 2 biowheel filters. He also looks a lot thinner in these pics because his eyes are sunken - it shocked me as well but his head, I thought was in ok proportion before.
As I mentioned before, my husband did see him pooping what he thought was a hair yesterday so I am assuming this has to do with parasites? What is TB?
Thanks guys.