Hey guys,
It stinks this is my first post but I need some help, I bought 2 baby RES's on wensday and I noticed a little white dot on "Bubba"'s shell

My set up is a 15 gallon rubbermaid filled halfway with clean conditioned water, I have a Tetra 10-30i filter, a UVB reptisun 5.0 lamp and a regular house bulb for the heat lamp. The water stays at about 78-80 degrees and the basking dock stays at 80-90 degrees. I do the 12 hrs on 12 hrs off cycle for my turtles and feed them once daily for about 30 mins as much as they can eat. (ReptoMin pellets and small cut up earthworms sometimes). Bubba seems to be happy and swimming around lots and basking normaly and just happy as could be. His brother Franklin has no white dots and is very active as well. I was just wondering if this could be start or shell rot or soft shell

Franklin's shell is normal and a little soft on the edges but I assume thats normal since they are 2 month old hatchlings still. But Bubba's shell is soft on the edges and I noticed the white dot. Can some one help me?


Mike