Hello again.
I have good news to report, I have spotted a handful of tiny red cherry shrimp! We will see if they get to adulthood with the Corys in there. I’m willing to wager some shrimp lives to test out Cory cohabitation.
In follow up to other replies, I am pretty measured about the Shrimp Essentials, I add the 5 mL to each gallon of RO water or decorinated tap water that I add (which is every other change). However, I agree it would be a good idea to test GH and KH since there are clearly some tap water minerals getting in there.
Now the mystery snails, that’s still a mystery. I’ve thought about putting a piece of driftwood extending above he waterline. Perhaps they would be more content laying there than in the sides of the tank.