I've recently made a ATBA for my two RES which are about 6 months old who live in a 65 gallon tank. Both turtles seem healthy, they eat and drink and would bask on a regular basis when i had the floating dock.
The basking area that i have is made out of wood and has plexiglass cut out to make the walls higher to prevent escaping and a little bit of cover for the turtles. I have a heat bulb and uvb bulb up there along with a bunch of wood sticks for the bottom.
Now, the ramp is quite long which i believe is the problem. It is maybe 5 inches wide and about 20 inches long considering that the basking area is higher up and towards the side of the tank rather than on top.
One of the turtles has shell fungus which i am treating atm and i put them up there to dry for hours blocking the ramp to prevent them from entering the water. They just always seem to try to escape and when i do unblock the ramp, they just launch themselves onto the ramp and into the water. I have seen one of them go down slowly as i guess he has learned but he doesn't go up. The ramp is made out of a green carpet looking texture which you can buy for reptiles at the pet store.
The water ranges between 78 - 82F. I have a fish tank lid with lights and all which in my opinion makes them feel safer than without a cover.
What could be the problem with the basking area? Are they just not used to it? Is the ramp way too long? How can i fix this?

