Too humid?

[nataliextodd]

Hiya! I am new here! I had crabbies as a child but recently purchased them in October of 2019. Over the past few months with them, I have finally got their tank to where it is in pretty great condition. Only thing is, their humidity is always above 90%. I don't spray often. I do have large water dishes though, but am I hurting them? Over the past months, I've spent several hundreds of dollars on all of their supplies to ensure I'm doing my best for them, but I am stuck here. Help!

[JoeHermits]

Have you calibrated your hygrometer?

Otherwise, 90% RH and above is perfectly safe. Mold grows more easily but the hermit crabs will be fine.


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[nataliextodd]

Yes, it's calibrated. And I have more eco earth than most people have in their tanks but I also have springtails for some cleanup crew! Haven't had any mold issues so far! Hoping it stays that way haha

[curlysister]

My humidity almost always runs at 90 (right now in winter it's so dry on the Canadian prairies) and above. I haven't had huge problems with mold. There really isn't any such thing as 'too humid', it's fine for the crabs.