I got a RES as a gift two weeks ago. It's small, about 6cm in length (head and tail included) and seems to be adjusting well (swims, likes to play around, has appetite, comes up to the basking area).
I feed it turtle food that I got at the pet store (shrimps I think?) and recently some lettuce (which it seems to like
I try to keep the water temperature between 24° and 28°, although last week it was really cold and, since the water heater i bought is too big for the starter tank, I had to warm up bottled water to regulate the temperature.
I clean the tank every 2-3 days as needed and I only use bottled water to fill it.
The only thing I'm missing (besides a bigger tank) is a UVB light which I intend on getting asap. I'm currently using a regular lamp that I've placed above the basking area.
My question is as follows; I've noticed the shell has become light brown-ish in some places, and I can't seem to remove whatever that is with light rubbing with some gauze under water (to be fair I'm as gentle as possible since the shell is very soft). I was wondering what that might be? Doesn't look like scarring or shell rot. Any ideas?
Thanks in advance
Images:
https://ibb.co/hpQcak
https://ibb.co/c9dr1Q


