Answers

Well, since so many of you dont get how to keep youre fish alive Im gunna answer a few questions.
1. (People need sleep but my fish die over night) Thats why you can stop the game time in the options menu.
2. (My fish die as soon as their born) At the start they wont die but after you breed them a few times the fish will get more rare and more fragile at first they will die around age 5, to stop this get environmental research, at level 2 they will still die but it will be at age 19-21 so try and sell them if not just w8 until you get to level 3.
(My fish are only worth 1-10 dollars how do I make more money) I found the best way to make money at the start is to breed the first magic fish with the orange and black striped fish, it will make a purple fish, set its price to 30 and then breed them with each other until you have a good environmental research level to get better fish. And dont sell youre magic fish it doesnt die of old age. Fish last a lot longer then 100 (age) so dont sell them.

Viper3997 about Fish Tycoon