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you cant get free pearls but you gain 2 pearls if you level up
you haveto pay on the top it say get more! or you could hack for it or level up
You will earn 1 Pearl for each level you advance and you can purchase additional pearls with Facebook Credits.
You feed and clean your fish's tank to level up. (You get 1 pearl for level 1-10, 2 pearls 11-20, 3 pearls 21-30...etc) Or you can buy pearls with Facebook credits that you buy.
You can get it by doing survey quest, or you can directly purchase with cash. You also get one pearl for each level up.
you can get the pearl by doing survey, or purchase it with cash. that's the only way you can get the pearl in happy aquarium. NO, you also earn one pearl each time you level up. :D
level 10 for and level 20 to unlock, i am using this site for all the happy aquarium infohttp://www.yayeasy.com/game/happy_aquarium/
There is a list of how many points are need for each level up to 46 on Gamezebo's Happy Aquarium strategy guide: http://www.gamezebo.com/facebook-games/happy-aquarium/walkthrough
what level are you? maybe you may refer to this list, http://www.yayeasy.com/happy_aquarium/happy-aquarium-levelexp-information/
you can buy it from the store, it will require level 32 to unlock.sources :http://www.yayeasy.com/2009/10/happy-aquarium-crawler-coralsdecorations/
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I am sure there are 105 and you can see that from the last unlocked tank. which sais "unlock on level 105". I am not sure if you can level up more