Catching cleaner shrimp???

[Stones]

I'm planning on treating the tank for planaria with flatworm exit or levasole and I'd rather remove the more sensitive invertebrates if i can. I know that both are "supposed" to be non-toxic and reef safe but I'm worried about the toxins from the flatworms snuffing my cleaners on me. It seems that cleaner shrimp are kind of like the canary in a coal mine, usually the first ones to go if there is something off with your water.