Think of getting cpo's for my 20g planted tank. Just want to make sure they will be compatible. Tank is planted with lots of hiding spaces. Current inhabitants are red cherry shrimp of all ages. Dwarf Cory's and celestial pearl danios and an otos. Also assassin and pond snails. Not too concerned of crayfish eating shrimp babies. Concerned about my pygmy Cory's. For some reason my pygmy Cory's are extremely skittish and since they inhabit the same region of the tank, wondering it the Cory's will be freaked out even more. Ty for any cpo advice.