OK, Turtle 2 in pic 3 is a RES (the red on the side of the face is a dead giveaway). I'm assuming Turtle 1 has similar markings so...you have 2 cute RES.
But, is that what you're keeping them in?

They need a proper tank (20-gallons would be good) with a basking area and proper lighting. The lightbulb you have is OK for heat but they also need a UVB light (it's flourescent and doesn't give off heat).
As was asked before, what is the temp of the basking area and water? If the water is too cool, they'll become inactive and won't eat. Basking area temp should be 88-90F and the water should be about 78F (if you can't maintain it at this temp, get a submersible water heater).
What have you been feeding them, how much and how often?
They need a lot more than they currently have to thrive. Read the info on the forums. Also read
http://www.austinsturtlepage.com/Articl ... chling.htm
Please get them a proper tank (think 10 gallons of tank per inch of shell length) and what they need to grow. If you have specific questions, just post.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-