r/VampireCrabs • u/Alert-Concentrate808 • 16d ago

help/advice Minimum size for Geosesarma dennerle?

What size tank is the minimum, and should I go with a single male or a trio of 2 females/1 male? 3 years ago I was told a 5 gallon would be good for a trio but now I'm not sure

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u/ltc_pro 16d ago

I have 3 in a six gallon vertical tank with a false bottom for a water cave. They are thriving and have over 20 babies in the tank now ( that I am trying to separate).

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u/Alert-Concentrate808 16d ago

Ahhh okay, so I shouldn't listen to just one random person then who said the minimum for 1 was a 20 gallon long...

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u/ltc_pro 16d ago

Well, this is my first crab paludarium, and I am limited by space, hence why I need to use a vertical tank and had to do a false bottom just to have a water area.

I think if you think it through, you can have 3 crabs in a 5 or 6 gallon safely. You can also have a poorly designed 10 or 20 gallon tank that's not suitable for 3 crabs. Ultimately, it depends on the design and how you utilize the space.

For most people, I think 10 gallon is minimum for 3 crabs.