curly hair help

[Glenn]

Looks like it's some left over molt on his abdomen; I've had that happen to some slings on occasion.
What you can do is keep it moist for a while, and try and grab it off with tweezers or something if it does not come off on it's own. I would think it's just barely stuck on, as there are bristles under there.
Otherwise, you can just leave it; it's not anywhere serious that would impede a future molt.

You can "overfeed" a tarantula to a point that it may stop eating or fast for an indeterminate amount of time, but I've only heard/read of one or two reports of them actually eating so much that they seemingly burst.
To be safe, I wouldn't feed it so much to the point where the abdomen is more than double the size of the carapace.

Edit:

Cute 'lil guy, by the way. I miss when mine was that small.

[Lija]

thank you! i will slow down on a food then, the guy eats like 6-8 3 week crickets probably a week, i get them for my baby geckos once a week and then extra just throw in there, i must say they disappear pretty fast. I can swear after molt it doubled its previous size, how this is possible?

i tried to grab whatever is stuck and take it off, it stuck pretty well, i'm afraid to hurt it. will increase humiidty, but i think it should be around 75 at least in there already, it is a small plastic tub with a few small holes for ventilation, substrate has never dried out yet.

i have another question though about my other one, it has molded, going right now to take a pic. one of those what the heck I'm looking at lol

[Truffs1178]

Make sure humidity and temp are perfect especially when it's molting. If it already was then it's just bad luck.

When a tarantula molts it isn't actually stuck inside the old exoskeleton all cramped up. It comes out soft then as it's new exoskeleton is hardening it expands so it grows bigger.