HCA: Hermit Crab Association

Hello, So my hermit crab, Alvin, was a deep read color with a large purple pincher. He “vanished” for several days, I assumed he molted. Now he seems like different color everyday. Some days he seems pale blue/purple then some days he seems more red. What is going on? Thank you in advance for the re...

Thank you!

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Hello,
What are the white things on my crab’s pinchers? Molting?

Thank you!

Thank you for the reply!!

Hello, I have a tank that is 30(L)x12(W)x18(H) and the current heater I have is 8.5x18.5in and I use a thermostat controller. It is located on the back of my tank centered and 4 inches above the substrate. The controller is set to 80. On my temperature and humidity monitor the temp shows 74-80. Does...

Hello, I have a tank that is 30(L)x12(W)x18(H) and the current heater I have is 8.5x18.5in and I use a thermostat controller. It is located on the back of my tank centered and 4 inches above the substrate. The controller is set to 80. On my temperature and humidity monitor the temp shows 74-80. Does...

Hello, A couple of general questions about the substrate. I have the play sand and eco earth mixture. My humidity has been between 76-80% about 3-4inches deep. Is there ever a need to moisten the substrate? Also, when is a good time to change up the landscape? For example I want to add in a small po...

Ok thank you! Obviously nervous new crab owner here! The substrate is 4 inches now. I didn’t realize when I set it up that it should be 6 inches. I think I can see what looks like tunnels along the glass now.

Sorry me again! So what happens if their cave collapses? Are they able to crawl out? Also, how would you add more substrate after you have the crabs in their home?

Thank you both!!

We have 2 crabs about a month now. 20 gallon tank, sand and eco earth mix. Heating on the back of the tank; humidity is not between 75-80% and temp is 77-80. I had an issue with high humidity for about a week 95-99%. I have fresh water and salt water for them. Both waters have no choline. When I had...