I have bought the leat expensive fish eggs, and when I dropped them in the tank, they did not hatch...I bought another set of eggs, and still nothing hatched...Has anyone ever had this happen? I had purchased and hatched eggs successfully in the game, but now they won't hatch...Help please??

Thank you...

If your tank is full, they won't hatch.

How many fish do you already have in the tank? In the desktop version you cannot have more than 21 fish (20, if you have the seahorse) in each tank. If the tank is too full, the eggs will be eaten by the other fish.

Oh yes I think that was the problem, when I tried it in my empty sale tank, it went fine...Thank you!!!

I've another problem with the purchased eggs....Why is it when buying the level one eggs, I get fish that die, even though I am on level 2 of research? Are these common eggs not viable all the time even in level 2? Its twice now that I have had level one egg baby fish die by age 14...not fair???

The common eggs will only produce fish that will remain healthy in any level of Fish Environment. There is probably something else wrong, such as your fish are sick, starving or overfed.