brine shrimp

i made a hatchery but i cant hatch my shrimp i have a warm light. i use aquarim water. the hatchery is home made. its a bottle with the bottem cut off and an air hose going thro the lid i "bubble"them for about a day and ahalf and i turn off the light and the pump but all the eggs sink cuz their unhatched. i cant figure the problm out can any one help me im using "ocean nutrition brine shrimp eggs and it sais there guaranteed to hatch any help or advice will help thank you in advance

 

Be sure to read the directions if you need to use saltwater or fresh water. Some brine shrimp eggs come with salt mixed in so you only need to add them to fresh water.

 

Give them a little more time to hatch. Mine are usally hatched after two days.