I adopted a 3-4 year old male RES about two months ago. He used to bask on his platform all the time, but I recently got a much more efficient water heater and now he won't bask at all. He developed a white fungus about a week ago that we're treating with salt baths. I know these problems are husbandry related, and I'm looking for some help. He's in a 100 gallon tank- filled about 2/3rds of the way. I have two heat lamps and a UV lamp pointed directly at his dry dock. The water temp is between 78-80 degrees. Should I turn the water temp down? Get him a bigger dock? More light? Thanks in advance for your help!
The vet recommended the salt baths and manually dry docking him for about an hour per day until the fungus resolves. He didn't have any recommendations about getting him to bask on his own again though.

