Soon to be crab owner with a couple questions!

Please post here if you are a new crab owner and someone will be along shortly to welcome you to the HCA! This is also the place to welcome new crabbies to your clan!
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Kas02
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Soon to be crab owner with a couple questions!

Post by Kas02 » Tue Sep 01, 2020 4:23 pm

Hello! My friend who has hermit crabs directed me here and I’ve been learning so much!
So far I just have an empty 29g tank and I’m currently gathering supplies/researching. Most of my questions have been answered by searching here, but I still had a couple:

Crab numbers — can there be an odd amount of crabs or do they each need a buddy? Would 3 be fine?

Heat mats — I figured I’d go with the recommended ultratherm heat mats, but I’m unsure about size. I can’t remember where I found it, but I read somewhere that the 6x23 would be good for a tank my size. They’re out of stock everywhere, would an 11” be too tall? It would be a tight fit assuming I’d have between 6-8 inches of substrate. If it overlaps the substrate by and inch would that be too drying?

Thanks so much!

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Enson
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Re: Soon to be crab owner with a couple questions!

Post by Enson » Tue Sep 01, 2020 4:48 pm

If you are in the US, the bean farm currently has them in stock. That's where I got mine. Works well so far for my 20 gal h. You will want to insulate it, and I personally always recommend a thermostat with any kind of temperature device.

https://beanfarm.com/products/ultrather ... 4905302345


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Kas02
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Re: Soon to be crab owner with a couple questions!

Post by Kas02 » Tue Sep 01, 2020 5:25 pm

Hm, when I scroll down it says sold out

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Enson
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Re: Soon to be crab owner with a couple questions!

Post by Enson » Tue Sep 01, 2020 5:38 pm

Huh the page must have been cached for me earlier. I reloaded it and now it says that. Sorry :(

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Enson
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Re: Soon to be crab owner with a couple questions!

Post by Enson » Tue Sep 01, 2020 5:44 pm

I can go ahead and answer the why not to overlap the substrate. You risk a big thermal differential across the glass. The thermal differential can lead to cracking. It's not a guaranteed issue, but it's the main risk I could see.

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Kas02
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Joined: Tue Sep 01, 2020 4:04 pm
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Re: Soon to be crab owner with a couple questions!

Post by Kas02 » Tue Sep 01, 2020 6:08 pm

Enson wrote:
Tue Sep 01, 2020 5:44 pm
I can go ahead and answer the why not to overlap the substrate. You risk a big thermal differential across the glass. The thermal differential can lead to cracking. It's not a guaranteed issue, but it's the main risk I could see.

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That makes sense, thank you

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curlysister
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Re: Soon to be crab owner with a couple questions!

Post by curlysister » Tue Sep 01, 2020 7:30 pm

You can totally have odd numbers of crabs!
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Topic author
Kas02
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Joined: Tue Sep 01, 2020 4:04 pm
Location: Northeast

Re: Soon to be crab owner with a couple questions!

Post by Kas02 » Tue Sep 01, 2020 8:23 pm

curlysister wrote:
Tue Sep 01, 2020 7:30 pm
You can totally have odd numbers of crabs!
Thanks! I thought so, just figured I’d double check!

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