Well basically there are 4 types (as of 10 July 2010) of fishes for your Fish Discoveries.
1) Classic Fish
3) Shrimp Gobies
4) Mastery Fish
You will need 5 fishes for each of the 4 types. More information about this later.
Also, there are 3 types of Treasures you need to collect or keep in your tank to complete the Treasure Discoveries.
2) Precious Shells
3) Deep Sea Faunas
You also need 5 items for each of the 3 treasures.
Read my other posts here (they may not have been written yet but basically these are the topics I would like to cover, come back to this article check the links when they are ready):
Need help? Don't know where to find your Discover Log?
What happens when you get more Discover Points and see my first gift I got from my neighbors! And what other types of gifts come from Gift Boxes?
You may want to view my other FishVille posts or surf around my blog. If you like, please visit my Support page.
Share and learn. Learn and share :)