Insaniquarium Wiki
Insaniquarium Wiki
These adorable little fish are a mainstay of any aquarium!
Meryl, The Fish Emporium

Guppies are the first breed of fish introduced in Insaniquarium! Deluxe. Guppies have three regular stages of growth: baby, medium and large. A guppy may also turn into a king guppy after a period of time. A large guppy can also be fed a Star potion to turn into a star guppy.

Often, baby guppies are used as food for larger, carnivorous fish, especially Carnivores. Gash will also feed on guppies as a price for his intense fighting capabilities.

Guppies can be acquired in three ways:


Maturity Description Drops
Baby guppies are the first growth stage. This size has the highest danger of death and won't drop anything. Baby guppies can be protected by Wadsworth against Aliens. If well-fed, a baby guppy will grow into a medium guppy. N/A
Medium guppies start dropping money every so often, allowing players to buy more fish and other items. Medium-sized guppies can be protected by Wadsworth against aliens. A well-fed medium guppy will turn into a large guppy. 1 Silver coin per 5-6 seconds
Large guppies are the next growth level. If a large guppy eats a star potion, it will become a star guppy. If a large guppy survives for a long time, it will turn into a king guppy. 1 Gold coin per 5-6 seconds
Star guppies are only available in Tank 2. They drop stars instead of coins, which are eaten by starcatchers. Star guppies can also turn into king guppies. They are rather translucent and have higher color contrast compared to regular large guppies. 1 Star per 5-6 seconds
King guppies are the final form of a guppy. If a large guppy is kept alive for around ten minutes, it will transform into a king guppy the next time it eats fish food. They drop diamonds instead of coins and wear a crown. King guppies are a light blue in color with deep blue fins. 1 Diamond per 5-6 seconds
Nostradamus The Nose.png
Nostradamus guppies are guppies that have eaten snot. They are completely identical in behavior and appearance to the pet Nostradamus, except that they can be killed by Amp's electric attack. For every purpose other than Amp's ability, they are treated as pets instead of fish, so they are invulnerable to all other forms of damage, do not require food, are ignored by all other pets (IE: Gash, Gumbo, Wadsworth), are ignored by aliens, and will not stop the player from losing the level if all their other fish are dead. 1 Snot per 15 seconds


Besides being eaten by aliens and starvation, guppies are also subject to predators. Baby guppies, in particular, are used to feed carnivores and guppycrunchers. Guppies of any size can be eaten by Gash. Guppies can also be killed by Shrapnel's bombs or Amp's electrocution ability. Baby and medium guppies will die when they attempt to eat a star potion, giving baby guppies a third hazard exclusive to their maturity stage. Baby guppies can also be converted to Nostradamus guppies upon eating Snot, which despite not technically killing them, stops them from producing coins, growing, and counting towards the player's fish total (meaning the player can still lose the level even with living Nostradamus guppies in their tank).

On the other hand, baby and medium guppies will be protected by Wadsworth, and Gumbo can help protect guppies and breeders of any size. Additionally, guppies are the only fish that are produced by other fish via birth.

Virtual Tank

Baby guppies are a form of food available for carnivores and guppycrunchers. They can be produced by Prego, a large breeder, or Cookie, if neither Prego nor a breeder is in the tank. Guppies can also be bought from The Fish Emporium, where they cannot be killed. Regular guppies cost 25 shells, colored guppies cost 500 shells, rainbow guppies cost 2,500 shells, and more expensive guppies with various special attributes are sometimes available. All guppies have the same payout. Small guppies give nothing, medium guppies give silver shells, large guppies give gold shells, and king guppies give blue shells. Colored guppies can not grow to be a king guppy.

Guppies in the virtual tank gain resale value over time; 50% of the price per growth stage: 50% for small, 100% for medium, 150% for large, 200% for a king.

Colored Guppies

30 guppies of various colors can be purchased from the Virtual Tank, including one rainbow guppy that shifts between colors.

Colored Guppies
Image Name Body Color Fin Color Price
Berry.png Berry Purple Pink 500
BlueGuppy.png Cerulean Aqua Cerulean 500
Citrus.png Citrus Yellow Green 500
AquaGuppy.png Cotton Candy Cyan Hot Pink 500
Cream.png Cream Cream Fuchsia 500
Earth.png Earth Brown Green 500
Onyx.png Ebony Dark Grey Black 500
BlueyellowGuppy.png Electric Yellow Blue 500
Gold.png Gold Yellow Yellow-orange 500
Imperial.png Imperial Red Black 500
Iron.png Iron Blue-Grey Dark Blue 500
White.png Ivory Light Grey White 500
Lavender.png Lavender Light Purple Cream 500
FireGuppy.png Lemon Yellow Dark Orange 500
PalepinkGuppy.png Lilac White Light Purple 500
LightgreenGuppy.png Lime Lime Green Light Green 500
Magenta.png Magenta Magenta Pink 500
Mint.png Mint White Mint Green 500
GrassGuppy.png Moss Moss Green Dark Green 500
Peach.png Peach Peach Orange 500
Periwinkle.png Periwinkle Grey Periwinkle 500
Rust.png Rust Laurel Green Maroon 500
Sand.png Sand Light Brown Blue 500
AquablueGuppy.png Sea Green Light Green Blue 500
Teal.png Seafoam Pale Green Teal 500
Venom.png Venom Light Green Purple 500
Vermillion.png Vermillion Red Orange Yellow 500
Violet.png Violet Pink Blue Violet 500
Yang.png Yang Dark Blue White 500
Yin.png Yin White Dark Blue 500
Rainbow.png Rainbow Rainbow Rainbow 2500


The first guppy a large breeder gives birth to will become owned by the player and be known as a junior. All guppies thereafter function as carnivore food. A junior will be named after its parent with an added "JR" at the end of their name and drop substantially better shells than store-bought guppies, starting with gold shells as a baby, blue shells when medium, spiral shells when large, and bags o' shells when it becomes a king guppy. Their hometown will always be Virtual Tank.


Santa is a secret guppy that has a white body and red fins, quickly grows to full size after a few feedings, produces bags of shells, and sings its own special Christmas fish songs. Buying Santa guppies with special attributes, raising them, and selling them the next day to get a new one is a great way to earn shells faster. Right-clicking on Santa in can move him. You can move him near Walter and make him produce infinite shells.


Rocky is an extremely rare, pre-named fish available for purchase in The Fish Emporium that never grows and eats ultravores, roaring loudly while it does so. Rocky has a blue body and white fins, is priced at 50,000 shells, and is associated with a disappearance glitch that makes it a bothersome fish to purchase.

5 King Guppies & Santa drop Bags of Shells (Meril's effect).

King Guppy drops Blue Shell.


Guppies have made cameos in other PopCap games outside the world of Insaniquarium:

  • There are multiple Guppies underwater if you complete/fail a level in the downloadable PopCap game Noah's Ark. They are seen swimming when the flood has risen.


  • Guppies are based on the real fish, Guppy (Poecilia reticulata)
    • While they are based on guppies, their appearances more closely resembles a goldfish.
  • Guppies are the cheapest fish in the Emporium (at a price of 25 shells).
  • Medium-sized guppies are the least vulnerable of the guppies.
  • The king guppy is the only form to have colors other than gold and pink.
  • Guppies and carnivores are the only fish that have special color sets in Virtual Tank.
  • The guppy is the only fish species in the game to appear in every tank (excluding star guppies).
  • Star guppies remain translucent when they turn green from hunger.
  • Right-clicking near a guppy in Virtual Tank Mode will make the guppy swim away from the player's cursor.


Tank 1 GuppyCarnivore
Tank 2 Starcatcher
Tank 3 GuppycruncherBeetlemuncher
Tank 4 BreederUltravore
Virtual Tank Mode Ball FishBilaterus HeadSylvester