IT gives fish health.

thats a spoiler

IT makes the fish *censored*

OH thats what it do. Thanks if that is true. I am playing ft now got the sea horse. My kids like it so do I. didnt think it did any thing

The seahorse doesn't actually take up more space. For example: I first bought it and put it in my sales tank. I was eventually (not sure how long this took) able to put 20 fish in with the seahorse. Once I moved the seahorse to another tank, I was able to put 21 fish in the sales tank.

I'm not sure when exactly this happened, I just noticed one day that I had 21 fish for sale. I tried it with different tanks, and the same thing happened. So it doesn't actually take up more space. Any thoughts?

In the Mac and Windows versions of Fish Tycoon, each tank can hold 21 fish (before you purchase a seahorse). The PDA versions can hold 20 fish. The "extra" room for one more fish in each tank was added to the computer versions during the game's development to allow for the seahorse without reducing the number of fish the tank could hold.