New Snails and Invertebrates, Help Me Figure Out How to Redistribute Every Thing!

The snails will be fine. ADFs tend to be rather blind over anything.lol ACFs though are another thing.

Oops. I meant would they eat the cherry shrimp.
 
Your revised plan sounds good to me.
Be careful using copper-based meds with plecos though, you may find that they are very sensitive to the meds and can become ill because of the copper. If I remember correctly, plecos are scaleless fish and as such very touchy about chemicals, especially copper. You may want to move them to a different tank for the duration of the treatment. They will be fine to return to the tank following the treatment, but the full strength of the med can harm them.
 
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