You can't and don't ever want to put a heater IN a cage for crabs. This little heater sticks to the side of plastic heaters and keeps the temperatures up a little. It's very low wattage, so not very warm, but just enough to maintain a comfortable temp for your crabs.
answered 2 years, 5 months ago
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I personally wouldn't recommend using ANY heating device with plastic. It's just not worth the risk. Though that depends greatly on the type of plastic used among other factors. I use a 10 gallon glass terrarium for my hermit crabs, and I highly suggest you do the same!
answered 3 years, 5 months ago
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