Hi, I have two pool frogs I keep indoors at room temp, but I noticed that one of them will climb to the highest point he can under the sun lamp I installed, it looks pretty comical considering how bulky and un-tree-frog-like pool frogs look. Just to test I tried hanging a 40 watt ceramic heater about 10cm above the highest point in the tank and lo and behold he started preferring that spot too. My other pool frog has normal colouration, eats enough etc. but spends most of his time in the unheated water.

I want to encourage him to bask (is that what's happening? I know bombina orientalis and african bullfrogs will do it if given the opportunity but I thought it was pretty rare for amphibians, especially northern european ones) since he's very visible and he seems to have lost any nervousness around me but I don't want to dry him out, is a 28-30 degrees C basking spot going to be safe in the long term? It just seems so much higher than what they'd encounter in the wild but my frog definitely seems to prefer the ceramic lamp over the sun lamps that only raise the air a couple degrees right underneath them.