I have some cleaner shrimp babies that are starting to get larger... some are a half inch long, maybe longer. I can actually tell the distinguising characteristics of a shrimp. I have no fish in this tank, only two cleaner shrimp. Is it possible that I might actually get a litter of shrimp? There are tons of babies in there, maybe at least 20-30, but some are getting larger. Noticed them first 1-2 weeks ago, but could have been there longer.