Sandbox effects (free play online version)
Press one of the keys Below to activate the desired cheat.

Sandbox effects (v1.10)
For v1.10, when your at the main menu you need to have the silver trophy to access the sandbox level. When you have the silver trophy go to the sandbox level by pressing [Up] [Up] [Down] [Down] [Left] [Right] [Left] [Right] B A. When your in the sandbox stage you can press the keys below to make things happen.

Christmas fish
Buy a purchase guppy from the store, then name it SANTA. It will turn red and white, and Christmas music will start toplay.

Sandbox
Press [Up] [Up] [Down] [Down] [Left] [Right] [Left] [Right] B A when your at the main menu screen where the mermaid is at to sccedd the sandbox. Note: You need to at least have the silver trophy to access it.

Or after you earn at least the silver trophy, place the pointer over the trophy at the main screen. Then, press [Up] [Down] [Up] [Down] [Left] [Right] [Left] [Right] B A. Note: Be sure that [Caps Lock] is off. Pressing different letters will cause different pets and aliens to show up.

Simply press [Caps Locks] then A, S, D, or F to get the bonus pets.

Hints & Tips

Easy Time Trial mode
Farther along in the game you will access Amp the electric eel. In Time Trial you have five minutes to get the most money you can. Spend the 4:50 seconds earning fish. They do not need to be grown. Be sure Amp is ready to shock the tank. When close to the end, activate Amp's power and he will shock the tank. After that, every fish will be dead, but will have dropped a diamond. Collect as many diamonds as you can. Every diamond you collect earns 10 shells at the end.

General tips
You need to go through a number of steps in order to make it. First, feed your two fish until they are at least large. Then, upgrade your food quality until the maximum, but do not buy any more guppies. After you have the money, upgrade your food quantity to the maximum. Note: This will be helpful in getting plenty of money. Then, when those tasks are done, buy three more guppies for a total of five in your tank. Feed them all so at least one is blue and the rest are big. Then, purchase five more fish. You should now have ten total fish. Make at least two blue, seven big, two medium, and one small for the carnivore you are going to buy. You should get a fair amount of money. When you feel that you are ready, buy your carnivore, but no more guppies. Let the carnivore die, then battle off any alien intruders to your tank. Make a lot of money and upgrade your artillery to the maximum. Note: This will be helpful for fighting off enemies. Finish this task in each level and you will soon find the game easier.

Start a game with your two guppies until they are both large. Make $500 and buy four more guppies. Raise them all to be big, and at least one of them to drop diamonds, or let them turn blue. Then, get your food quality and quantity to the maximum when you have the money. Then feed your guppies so they are all large or blue. Make plenty of money, then buy your carnivore. Do not buy anymore guppies until it dies. When your carnivore is dead, buy five more guppies, giving you a total of eleven in your tank if none of them died. Turn them all big and get plenty of money. When you have enough money, buy your laser upgrade to the maximum and beat all of the alien invaders. If you go this way for a while, you should soon get all of the egg pieces for every level, making the game easier.

Purchase plenty of fish, and turn them all big. When you have enough, obtain maximum weapons, food quality, and quantity. Then, kill all liens in your tank. Buy all three egg pieces, and you will in time be on your way to being an insaniquarium master.

Level 2-3: Defeating the new monster
In level 2-3, the way to beat the new monster is to feed it. A Star Potion will help make it weak. You can feed it with fish food. The higher quality of the food, the faster it will be die.

Four Active Pets
You can purchase this upgrade for 40,000 shells, but it is only available after you buy all four bonus pets. This upgrade will allow you to bring up to four pets in a tank instead of three.

Multiple Nostradamus fish
In order to get Nostradamus. Go to Adventure mode and let your fish turn green. When he drops snot the hungry fish will become Nostradamus. If you keep on doing it you will have tank full.

Easy coins
Work your way up the food chain as fast as you can. First, feed three guppies until you have enough money for a carnivore. Buy a carnivore and feed it guppies until you have enough money for another carnivore. Keep on buying carnivores whenever the money is available and obtain maximum food upgrades sometime after you buy the first carnivore. You will only need Food x4 or x5. There is no need to get all nine because you should be focused on getting creatures higher up on the food chain. Keep buying carnivores whenever you can. in time you should have twenty carnivores and ten to thirty small guppies swimming around. By then the diamond drops will become vast and you would have completed the level. You can get up to 20,000 coins by doing this in Time mode. That is 1,000 shells every five minutes. Do not focus on guppies focus on the larger fish.

Seven active pets in Virtual Tank
This upgrade is not to helpful, but it is fun having seven pets in your virtual tank. Purchase this upgrade after you buy the Four Active Pets upgrade for 45,000 shells.

Eleven pets in Virtual Tank
Go into Sandbox mode. After you quit the Sandbox, you can display eleven pets in your Virtual Tank.

Free Ultravore in Virtual Tank
In order to get a free Ultravore, buy an Alien Attractor. When Alien type U (Rock Giant) appears, press "Feed" button and click the Ultravore. This will also work with other Aliens. An example, The Fat Guy can be fed pizza and chicken.

Alien Signature Type-D
If you come across Alien Signature Type-D, when you destroy it click on the torpedoes that are still flying. Your fish will not be killed.

Brinkley
Stars are not the only things that Brinkley throws. He will throw money in any form, including treasure chests. Note: The more valuable the item, the rarer. He will not throw coins or beetles.

Recommended pets
The best pets to bring with you on the levels are listed below.

• Meryl, the whale, and Prego.
• Meryl, the crab, and the pearl person.
• Meryl, Prego, and Zorf (if you are unskilled)
• Itchy, the crab, and the whale (this is the attack and defense team)
• The Skeleton Fish, Meryl, and Prego (one of the best teams)

Unlockable Pets
You can acess the pets below.

Adventure Tank 1

Stinky the Snail (Level 1): Roams the bottom of the tank to catch coins you missed.

Niko the Oyster (Level 2): Produces Pearls from time to time which you can get for money.

Itchy the Swordfish (Level 3): Helps you attack any alien that appears.

Prego the Momma Fish (Level 4): Gives birth to new guppies from time to time.

Zorf the Sea Horse (Level 5): Will help you feed your fish if some of them get hungry.

Adventure Tank 2

Clyde the Jellyfish (Level 1): Floats around your tank to catch coins.

Vert the Skeleton (Level 2): Will drop gold coins every so often like a big guppy, only he does not die.

Rufus the Fiddler Crab (Level 3): Deals heavy damage to aliens but can only attack on the bottom of the tank.

Meryl the Mermail (Level 4): Will sing once in a while which makes fish drop coins faster.

Wasworth the Whale (Level 5): Protects your baby and medium sized guppies from aliens.

Adventure Tank 3

Seymour the Turtle (Level 1): Makes all coins/diamonds/pearls/chests drift slower.

Shrapnel the Robot Fish (Level 2): Will drop bombs once in a while, which can be clicked for money but can kill a fish on contact

Gumbo the Angler (Level 3): Lures all your fish away from aliens once they appear.

Blip the Porpoise (Level 4): Provides information about aliens and shows which fish are hungry.

Rhubarb the Hermit Crab (Level 5): Keeps your fish off the bottom of the tank.

Adventure Tank 4

Nimbus the Manta Ray (Level 1): Tosses food or coins/pearls etc. back towards the top of the tank.

Amp the Electric Eel (Level 2): Electrocutes your entire tank once in a while killing your fish but changes them to diamonds.

Gash the Shark (Level 3): Deals heavy damage to aliens but will eat your guppies from time to time.

Angie the Angel Fish (Level 4): Will revive dead fish.

Presto the Tadpole (Level 5): Can change to any of your unlocked pets. Right-click to change.

There is another hidden pet in the virtual tank store. It is one of the aliens, Sylvester.

Bonus Pets
You can buy the bonus pets listed below.

Brinkly the Scuba Diving Elephant: Purchase him with 20,000 shells. Feed him food and he will toss up stars.

Nostradamus the Nose: Purchase him with 25,000 shells. Will drop mucus worth one shell, but can postpone alien attacks.

Stanley the Startingly Small Sea Serpent: Purchase him with 30,000 shells. Will throw balls at aliens that cause damage.

Walter the Penguin: Purchase him with 35,000 shells. He can punch fish when you click him.