Welcome to RS. lots of great people here to help. Ok not sure which one you have but what I do with mine is after 2 days of bubbling i turn off the the air pump and put a light close to the bottom for about 10 mins. the shells will float to the top and the shrimp will swim to the bottom. I then hold the air pump higher then the hatchery and disconnect the air line from the pump and then take the hole hatchery with me to the tank and then put the air tube in the tank where I want the shrimp in. when I get down to about and inch or so of water left in the hatchery I then dump that down the sink since thats mostly egg shells. Refile and start the process over again. Like I said I am not sure which hatchery you have but mine is the one with the 2liter bottle with the bottom cut off. Is really easy