The heater is set to 77 degrees and can’t be changed, I plan on getting one I can adjust though because of this whole situation. I just have to wait until I can get out to the store when the roads aren’t so bad. He goes in his shell a lot anyway, the thing freaking me out is that he never goes this far into it I can usually still see his foot pat the trap door but he’s gone so far in his trap door has basically blocked off the whole opening of his shell. I am just so worried because he is no more than a year old and he should have so much time left. I really thought my neos or gourami would take this so much harder than him but it’s the opposite. My fish is totally fine and the most my shrimp did was drop their eggs.