humidity too high

 

 

  

 

   

 

 

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[EvilGizmo]

I just got a digital hydrometer, the one I did have said humidity was at 70% almost all of the time no matter what I did, it was one of the plastic gauges you get at the petstore, i just got a digital one and when the cage lid is on it's sitting at 90%, how do I go about reducing the humidity?

[emmac350]

Prop open the tank lid for a while, if not permanently. You need air flow in your tank to keep it from getting stagnant and molding. Don't leave it open if you aren't in the room, though, as that could lead to lost crabs.

[LordRhal]

What would you use to circulate the air in your tank? I know I'm going to have a bubbler in my tank, could I just use a T-valve and have one tube in the water and the other just shooting air in the tank?

[EvilGizmo]

Ok, so what I have on my tank is actually a screen top that we covered using the saran wrap you can seal by rubbing it onto a surface. I took the wrap off of an area at one end of the tank which is helping with the humidity level (also I saw in another post it was good to have some areas of the tank more humid than others, right now it's open directly over their climbing wall (covered one end of my tank with plastic mesh, the kind you use for cross stitch for climbing purposes). Currently it is at 87% with the humidity gauge at the top of the plants I have in the tank, so about half way up the side of the tank.

[emmac350]

Have you calibrated your humidity gauge, EvilGizmo? If not, your actual humidity level could be WAY different than what it is telling you. I wouldn't use the sealing saran wrap - there is a chance that the stuff used to make it seal better could be toxic to crabs (as they don't exactly test stuff for crabs). If you're using plastic wrap, it'd probably be better to use the plain kind to avoid the possibility of harming your little guys.

As for how I get air circulation, I have a 1/4-ish inch by 24 inch gap between the plexiglass part of the lid and the hood to let in air, I use the aquarium tubing to prop the hood off of the tank itself (lifts it between 1/8 and 1/4 inch), and the tank is below the air vent in the room (unavoidable, but it helps keep humidity reasonable).

[trixie]

Mine did the same thing. I kept spraying and pouring and was fighting to keep it above 75% and would drop quickly. Then I got my digital and it was 99% as high as it would go. And fought to get it below 90. Now it is stabilized around 82 to 86%.

   This is Wasabi. He is a PP, (Purple Pincher) and sadly, he has passed on. He was the biggest out of all the crabs I have owned so far, and out of them all, he lived the longest. He lived about 6-7 months.

~Hermies4Ever~

Land hermit crabs store a small amount of water in their shells just to keep their gills wet, thus allowing them to breath.