I don't exactly have an answer for that. I had 2 babies (actual baby shrimp, not larvae) in a breeder net in my main tank. They were doing great for about a month, but they managed to escape the net somehow. I'm hoping that they are hiding in the plants. A better scenario would be them hiding in the caves behind the vampire shrimp where there is no way that the fish would be able to get at them, but I really don't know where they went. They are very small and grow slowly (at least compared to amano), making them difficult to spot even in the breeder net. It all makes me that much more anxious to trying raising them again.