Your objective in each level of Insaniquarium is to collect enough money to buy 3 egg pieces. When you have purchased all three egg pieces, you will be rewarded with a new pet to add to your collection. Watch out for aliens, who appear from time to time to eat your fish. Use the money you collect to buy new guppies, fish food upgrades, weapon upgrades and other items to help you win the level faster.

Click in the fish tank to drop food for your fish to eat. As the fish eat and grow they will drop coins, and new fish and upgrades become available. When aliens appear, click on them to shoot them with your laser weapon. You can click next to an alien to deflect it in the opposite direction. For example, if you click just above an alien, it will start moving lower. Use this trick to maneuver the aliens away from your fish!

To earn money, buy and feed fish so they will grow and drop money. Bigger fish drop more valuable coins. Click on the coins, gems, or other valuable items your fish drop.