HCA: Hermit Crab Association

I currently have a cube 25 gallon tank with 6-8 inches of sand. humidity is usually around 90 and rarely drops below 70 I keep the temperature at 74F. the tank has five hermit crabs, three smalls and two mediums. I keep about 20-25 shells in the tank at a time, and change them out occasionally for new ones. the back of the tank has two small spider plants and two Hermie huts, a hanging coconut hut, and a fake vine plant. I supply them with fresh and salt water that I change weekly. I give them one source of meat a day, along with 3-4 veggies or fruits. I also have a cuttlebone stand thing in the corner. I have one uth on the back side and a plexiglass lid.

Sorry I cant send pictures here right now, but any input on how to improve my tank would be appreciated.

Hermitsandplants wrote: ↑

Tue Apr 15, 2025 10:15 am

I keep the temperature at 74F.

I think crabs usually like warmer temperatures, around 75-85 or higher (on the warmer end during the day, on the cooler end at night if possible, but tempurature fluctuations are not necessary).

Otherwise, as far as I know about crabs (not as much as other people here! ), five stars!

Your tank sounds great!

Thanks! I have been trying to get the temp up for a while now, do any of you have any tips??

I have a blanket put over the lid of my tank and covering the heating pads in the back and that really helps

Some types of UTH you can insulate over top, but some you cannot (becomes a fire hazard). What brand are yours?