A few days ago, I've got 4 Amano shrimp to go with the one I think I still have left in my 10g tank, and 4 Ghost Shrimp for my 20g tank, which are about half the size of the grown shrimp that were in there months before. Both were bought to replace some loses from both. The Amano shrimp, I original bought three, but two managed to get out of the tank and I didn't know until I've found their dried up corpses, and haven't seen the other one since, making it hard to tell if it was hiding or got out. The Ghost Shrimp I used to replace the ones that died in the tank. The sad thing about both is that I'll probably have to wait about a month before they become more out going without the fear of being somebody's lunch. What's even sad is that I have an algae growth in my 10g tank, which is what I've bought the Amanos for, and if I get the same results from last time, then I'll just buy a few Oto catfish. The algae growing used to be green, but it's starting to turn brown.