I just found this game on the net, and started playing it. But I don't fully understand, and the instructions aren't helping much. For the feeding meter, even if I put food into the tank, it doesn't do anything. The meter just stays white. That's the same with the health meter.
Does that mean that my fish are hungry and unhealty?
Also, after I put my fish into the tank, I used the growing formula thing, and they all grew, and I got them all pregnant. Will the baby fish survive? All I bought was the Aeration System. Thanks for your help, or for trying to help me.

The meters don't display anything until you select a fish. Try clicking on one of your fish (or putting one of them into the isolation tank). You should see the meters show the status of that fish.

You can check this thread for the answer to your question about the survival of babies!