Raising the cool side temp

Anyone have any suggestions for how to raise the temperature on the cooler side without raising the warmer side?

Currently my warmer side is 92, but the cooler side is 72. The tank is 30" long. I've got both a UTH and a day/night lamp.

whats the room temp at? maybe its too cool in the actual room.

what's the room temp? Tanks are a pain the butt, but it can be done.

Two options, basically. Either raise the overall ambient temps of the whole room....OR...get another UTH for the cool side. (I've had to do this in the past and used two different thermostats to keep the temps regulated)

Unfortunately my apartment only has a central thermostat, so unless I want to raise the temperature in the entire apartment, I'm guessint the room temperature solution is going to be harder.

Looks like a second UTH is going to be the solution. Thanks.