Well, I am off to a very well stocked LFS
tonight but it's over an hours drive away so hoping they have what i am looking for. I will certainly ask if they have cerith snails too then! According to their livestock list for reef cleaners, they have everything....
Since my 10 gallon has so much of the brown "diatoms" now, I am thinking to get a bit more than just half my CuC.
3x astrea snail
3x cerith snail
then in a week or two, get:
3x blue legged dwarf hermit crab
2x red scarlet hermit crab (if they stay small)
2x peppermint shrimp
and maybe another snail or two