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Yes back in late October when I first started crabbing I bought blue calcium hermit sand and also the EE and I had it separated on opposite sides of my old 20gal and later on when I bought more EE after reading about the blue sand I just ended up mixing it all together since there was barely any blue sand left. I have a feeling it may be that but you never know. Ever since my mold scare on the hammock i’ve been paranoid and don’t wanna put my crabs in danger. And okay I won’t poke holes in the saran wrap it’s just that mold caught up rapidly but I stopped misting my tank as frequently because my humidity didn’t budge anymore after the 78%-80% (i’m thinking of buying another uth maybe that will help?) I feel like the humidity should be a tad bit better. And my house is kept between 72-73 degrees on cool & heat. My temperature for the tank always reads at about 80.curlysister wrote:Sorry I can't help with the spots. Had you mixed the calcium sand in with the EE?
If you humidity is 78-80% with the lid sealed completely, it will likely go too low if you poke holes in it. Where it is now is ideal. You are correct that they get enough air flow when you open the tank to change water and food etc. How's your temperature?
But if I don’t have my lid wrapped my tank won’t keep its humidity that the crabs need its already at 78%-80% even taking the lid off completely for like 5 minutes the humidity drops. I have an UTH and 4 water bowls, the substrate is moist and they dig like crazy in it and I also have moss scattered across the tank and in a moss pit. I just don’t know what to dojonathon1989 wrote:It’s important that the air is properly circulated and vented as I previously discovered when I tried to use an aquarium lid for my previous tank. I soon started to get white fuzzy mold. Not good for the hermit crabs and humans or any living thing. I use a standard reptile lid.
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I know. I have had similar challenges when trying to retain humidity. What are you using to wrap the lid?Julsie wrote: But if I don’t have my lid wrapped my tank won’t keep its humidity that the crabs need its already at 78%-80% even taking the lid off completely for like 5 minutes the humidity drops. I have an UTH and 4 water bowls, the substrate is moist and they dig like crazy in it and I also have moss scattered across the tank and in a moss pit. I just don’t know what to do
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jonathon1989 wrote:It’s important that the air is properly circulated and vented as I previously discovered when I tried to use an aquarium lid for my previous tank. I soon started to get white fuzzy mold. Not good for the hermit crabs and humans or any living thing. I use a standard reptile lid.
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Perhaps maybe putting small holes in the wrap? Just enough to allow circulation of air? I cant know for sure if this would work. In the end its all trial and error.Julsie wrote:this is the lid I have taped up with saran wrap lol
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jonathon1989 wrote: I know. I have had similar challenges when trying to retain humidity. What are you using to wrap the lid?
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Its worth a try.Julsie wrote:
Do you think I should leave it cracked with air circulating inside? Im gonna try that. The lid lays on top of the tank and if u press down on it it snaps shut and tight letting in no air circulation so i think i should try not snapping the lid down and leaving the air flow across the top of the tank
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Mold actually isn't a danger to hermit crabs, though it can be an allergen to us humans. Having mold in your tank isn't going to harm your crabs, but it might be unsightly for you to look at.Julsie wrote: ↑Sun Jan 05, 2020 5:11 pm
Do you think I should leave it cracked with air circulating inside? Im gonna try that. The lid lays on top of the tank and if u press down on it it snaps shut and tight letting in no air circulation so i think i should try not snapping the lid down and leaving the air flow across the top of the tank
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Thank you for the response!DevilNDisguise wrote: Mold actually isn't a danger to hermit crabs, though it can be an allergen to us humans. Having mold in your tank isn't going to harm your crabs, but it might be unsightly for you to look at.
I had a very brief issue with mold growing in my tank, but it eventually cleared up on its own. I feel it's rather inevitable within an environment that needs such high humidity.
If you want to give venting a try, you can, but any amount of area that's vented is going to release your humidity, and that can drop quite a bit, even with such a small vent.
No harm in trying, though, but if the humidity does drop, I'd seal it back up again right away. Again, the mold isn't going to harm them in any way, it just might not look so pretty until it runs its course and clears up by itself.