Easy Shells:

When you have Amp the Eel, begin playing the game normally and accumulate some shells. Then, buy yourself a different type of fish and keep it alive. Once Amp tells you he can electrocute the tank, click on him until the lightning mark turns red and spend all your money on guppies. Once you have used up all your money, click on Amp. This should make him shock the whole tank and you will see a lot of diamonds drifting downwards. Repeat this to accumulate more money.

In virtual tank, set it up so you have Clyde, Seymour, and Zorf. Turn the screen saver on and they will earn you coins. Note: You must have some medium or large fish.

When in virtual tank, turn on screen saver mode. Allow fish to drop shells, show coins collected (power save mode is optional), and get a lot of fish. Then put Preggo, Zorf, and Stinky. Leave it running to accumulate a large number of shells.

Every day, buy a normal guppy and name it SANTA. It will turn into a Santa fish and drop bags worth 20 shells. Then, have Meryl, Presto, and Clyde (or Stinky). Change Presto into Meryl. Every time Meryl or Presto sings, Santa will drop three bags (each worth 20 shells).

This trick is useful if you want to easily get through the levels to reach the bonus round to earn more shells for your virtual tank after you have completed adventure mode. Take Amp, Angie, and Presto as your pets for any level. In the
beginning, change Presto into Prego, so that you can have a lot of guppies. When Amp is ready to shock the tank, change Presto into Angie, so that you have two Angies. Then, before you shock, buy as many guppies as you can. Then, shock the tank. You will get lots of diamonds, and will lose hardly any of your fish because the Angies will revive all of your fallen fish. You will most likely only lose about four to five fish.

When you are playing the game where the shells are falling and you must click on them and put them in the bucket, just click on any bags. You will get a massive combo and may even get over 2,000 shells when you finish.

Save up 15,000 shells. Buy a breeder. Raise it until it fully grows. Wait for the free fish. Sell the breeder. Then, wait for the baby fish to grow. Wait to it grows to a large one and it will be worth 10,000 shells. If you are lucky, it will grow into a
King guppy worth 15,000 shells. The breeder can be sold for about 5,000 to 15,000 shells, thus paying for itself.

In tank two in challenge, complete it ten times get 50,000 shells.

The tank three challenge reward is 20,000 shells. Pets: Clyde (collects shells), Seymour (take into all tanks; slows shells and increases total quantity gathered), Stanley (attacks all aliens but is especially helpful by exploding fireballs from Type U alien before fireball reaches targeted fish), Presto. Presto 1. Start out by changing into Shrapnel until you collect ten or more medium to large guppies. Change into Meryl. If there are tremendous amount of coins to collect after Meryl
sings, change into Stinky to help collect coins then change back into Meryl. When the alarm sounds, change into an alien fighter according to the type of pending alien as follows. For Alien Types D and U, Change into Angie (Stanley will explode most fireballs; Angie will revive most all fish killed). For Alien Types P and II, Change into Gash.

In the time trial mode, tank 2, bring in Clyde (Octopus), Meryl (Mermaid), Seymour (Turtle), and Presto. Start with Presto as Vert (Skeleton Fish). Collect as much money as you can and buy as many guppies as fast as possible. When you have the food upgrade options available, upgrade quickly to the pills. Also upgrade to dropping the maximum amount of food at a time. Once you have the food upgrades, buy a few helpers from the egg icon with the question mark. Try not to go over $800.00. Once you have lots of guppies dropping coins, change Presto into Stinky (Snail), even if one of the bonus pets you bought was already Stinky. Then, buy guppies until you find all you can do is feed fish. Let Clyde and
Stinky get your coins. You should end up with over a hundred thousand by using this system. If lucky enough to get two Stinkys collecting coins, it is possible to get over $150,000, which is about 7,000 or 8,000 shells. Note: Alien Type "G" is usually the most common alien in this tank; upgrade the food to pills and maximum pills as fast as possible.