Thanx for the info, went to see Aquarium Central, good selections of shrimps, but in the end its all about the money. I've had it really good in toronto with the prices from the local breeders. A-S grade crs/cbs is $3 each or 10 for $25, S+, SS only couple dollars more. Here i've noticed that the stores dont separate the crs/cbs based on the grades.