Hatch living creatures from the age of the dinosaurs and see how your triops double in size each day triops hatch in 24 hours can grow up to 4cm long and have an incredible life cycle you may also hatch other creatures such as clam shrimp fairy shrimp and daphnia please note we guarantee that 1 triop will hatch but you could have anything between 3 4 triops that hatch see instructions for more details or contact our customer services department just one of a range available from inter