Pro Exotics sells the Black Knight spray. At our facility, we use Pro Product's Provent-A-Mite spray and have used it with great success over the years. We've been mite free for a long, long time thanks to this product (any new animal gets treated no matter what).
Rob Carmichael, Curator
The Wildlife Discovery Center
>>I used to spray it on the snake and inside the cage. I would not leave the water bowl in, but would put it back a few hours later once all of the spray particles settled. I just looked around on the web and saw that Black Night has been replaced with "BK2", a spray containing one of the same active ingredients in the old Black Knight spray. I linked a page about BK2 spray below.
>>
>>Regards and good luck with your red mites.
>>WK
>>BKII
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Rob Carmichael, Curator
The Wildlife Discovery Center at Elawa Farm
Lake Forest, IL