Hey i just got a new turtle, well my first turtle ever i got 3 of them. kind of unexpected. so when i got them the first day i put them in a tank just for that day so the next day i can get some supplies for them. so i did alot of research on them and i bought all the things they needed. when i got home from buying all there supplies i noticed of the turtles had died

. so i quickly got the other 2 turtles out of the tank and made there new home in a 20 gallon tank ( will upgrade soon just need $$ ). So for the first day in they're new home they didnt eat or anything. the 2nd day i noticed one of my turtle ( Fred ) he was active and everything swiming around so later that night i feed him romain lettuce ( which he ate ) and 5 reptomin pellets that he ate also. I noticed that my other turtle kept on basking alot, and wouldnt stop its been 4 days now and he still hasnt gone in the water expect once to stick his head in. Then i noticed that he would reach his head all the way out and gasp his mouth open, then close it again then would gasp for air again it was like he was yawning alot and he hasnt eaten anything ever since.
List below is tempature and everything else.
Basking Temp - 78 degrees
Water Temp - 81 degrees
I have a UVA LIGHT, that heats the water to 80-83 degrees so i dont need a heater
I also have a UVB LIGHT 10.0 or so
The water is 1/2 way filled and i also have a filter. i think it was called Tetra whisper 40i, for a 40 gallon tank. I was also wondering if that turtle could be spread to my other turtle fred, he is very very active and eats.
OH YA and there both hatclings there like 1 or under 1 inch