They are snake mites natural predator, they eat mites at all stages of life cycles, eggs larvae all of it, you scatter it around the viv not just one spot and they will hunt eat everything they find then when food is no longer around they turn cannibal and eat each other. I’ve used it 3 times in a good few years and always resolved the problem. It’s not like you only put in a few of them from the bottle your talking a hell of a lot in each bottle.
I like using it because I can keep them in a nice enclosure I don’t have to use any sort of harsh chemicals or soak it in soapy water etc. It’s a very low stress way to handle it and has worked every time I have used it in the past
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