I had growth hormone (two doses left) then i bought the vitamins which got added fine to my inventory but completely replaced the growth hormones i had! no more growth hormones! Is that what's supposed to happen??

(i just lost about 300$ right there )

The 4 slots in your toolbox are for 4 different types of supplies for your tanks. Each slot can only be used for one type of supply. Slot 1 is for food, and the type of food will change when you research better food. Slot 2 is for medication; Slot 3 is for special chemicals; and Slot 4 is for eggs. The slots can hold one thing at a time. As you've already seen with growth hormone, if you have something in a slot and want to buy something else that goes in that slot, you have to either use up what you have. or it will be replaced when you purchase something else for that slot. That's just how the game works.

You probably missed the popup asking you if you wanted to replace the item in Slot #3. It looks a lot like the purchase confirmation popup.

ok, that's probably what happened...


thanks