HCA: Hermit Crab Association

Hi. We have 3 PP's. We have had them since July. Temp/humidity was great with UTH til Oct. Then temp started dropping when the temp outside started dropping (low 70s). And crabbies stayed hidden, when they had previousLy came out early evening. Knew someone keeps coming up at tho night because water is dirty in AM.) So I put the basking bulb back in the lamp tonight. (UTH was already insulated with foil and foam board.) Temp creeped back up to low 90s on hotter end (low-mid 80s on cooler end). At least one crab is back up tonight wandering around.

I know heat has helped. But how hot is too hot for PPs? Info on HCA says up to 85 is ideal.

Is the tat too warm on the one end? I am planning to turn the heat source (75w basking pointed at outside of tat) off in bit. It is usually on a timer, and has been just a UVB. Trying out the basking again, but I may have to go down to the 50w I have.

Temp is staying around 90ish on hotter end with mesh lid (covered in plastic wrap) cracked about 1 1/2 in.

If there's cooler areas in the tank for them to move to if they want/need, it's perfectly fine. You may find they enjoy it! The issue is if the whole tank gets and stays that hot for an extended period of time. Areas in my crabitats can reach up into the 90s but there are areas that are upper 70s - lower 80s.

Thanks! I put the 50w on all day, and so far it is staying around 86 in the hotter end. Def in the 70s on the cooler end. With the 75w off all night, it dropped down to 74-75 in there, which is about right.....It's around 66 out in that room, and there is a UTH on the back of the tank above the sub.