Attention:We will tell the the package is toy for the custom,don't worry about thatWe promise that we provide fish eggs that can be hatched!We check the quality very carefully before sending out to you.Please pay attention to the correct method /ways to hatch Killi fish eggs:1.The temperature is recommended to be around 25 °C, the lowest is 15 °C, and the maximum should not be raised above 32 °C.2.Before adding water, please observe the state of the fish eggs. The fish eggs are immature sometimes.So after you receive it,please watch the fish eggs ,if they have eyes ,You can put it in the water to hatch immediately.If not,wait for 2 weeks (watch them in 1 week),if they have little black you can hatch them.This is also a good experience.3.The water should not be more then 100 ml for one box of fish eggs !4.Water quality is recommended to use bottled water or tap water that has been sun-dried for 3 days.Generally, Cannot use cool boiled water for hatching fish egg5.After the small fish hatched, raise for 3 days, then change the water gently for 1/56.Please remember that do not add any other additional equipment such as oxygen generators when the eggs are hatching.Package include:Killi Fish Egg * 1+ Nutrients * 1+Landscaping * 2+Manual * 1+Box * 1