I started emptying my nano tank today, I've been transferring my shrimp to the new set up for a few weeks now. I took out a large clump of Christmas moss that I had in there and placed it in a dish of aquarium water to see if anything was still in it. I was amazed at the number of baby shrimp that were in it. I put them in their new home and thought that was that. I went back a short while later and looked under the moss and there was another lot of babies. I've just checked for the third time and found the two smallest shrimp that I've seen in my life. I expected them to start small, but these are miniscule. I didn't want to put the moss directly into the new tank as it's also hiding a lot of snails.