Guppy Fish

by Fish Tank on August 25, 2007

One of the most popular freshwater aquarium fish is the P. reticulata species, or commonly known as the Guppy. The Guppy in this picture taken by judhi, does a nice job of posing for the camera.


Also known as the millionfish or fancy Guppy, these fish are an excellent addition to the non-aggressive community fish tank. Special breeding programs have produced unique color strains in the species. Native to Trinidad, and regions of South America, the fish was discovered in Trinidad in 1866 by Robert John Lechmere Guppy. Although he wasn't the first to write about this species, the name "Guppy" stuck. Here's a few characteristics and items to think about when purchasing Guppies:

  • Minimum tank size 20 gallons.
  • Easy to care for.
  • Grows to 2 - 2.5 inches.
  • 65-81 degrees F, ph 5.5-8.0, KH 10-30
  • Come in many beautiful colors.
  • Guppies are live-bearers.

Usually you can distinguish the difference between Guppy males and females by coloration, and fin formation. Generally, the males are smaller, yet have brighter colors than the females. Also, female guppies have a rounded anal fin, and a pregnancy patch located near the bottom portion of their body.

Because these fish are live-bearers, you can have fun breeding them in your aquarium. Be warned though, if you try Guppy breeding, adults will eat the fry if they're left alone. You'll want to set your fish tank up specifically for breeding, if you're going to attempt raising them. This requires an environment with floating ferns and a breeding box which will protect the fry.

I have never tried Guppy breeding, but have friends that have raised fry. If you decide to try it, get ready to have a large amount of guppies to take care of. You'll want to make sure you have prepared a home for them. A pregnant Guppy can drop as many as 200 fry.

{ 10 comments… read them below or add one }

alexandra August 25, 2008 at 5:35 pm

hi my guppy was doing well a couple days ago i got another he died a day after i got him and now the other one is not doing well AND HE IS MAINLY AT THE TOP OF THE TANK WHAT DO I DO

Cejay Chan March 7, 2010 at 12:39 am

..uhm… guppy just gave birth a month ago to 27 fries..
..i isolated the fries from the big ones frightened that they might eat them..
..until when am i going to keep them away from the adults..??

lalalala April 24, 2010 at 1:02 pm


Fish Tank May 12, 2010 at 12:35 pm

uh… no.

Fishman June 18, 2010 at 1:25 am

keep the fry issolated until they are atleast an inch long 🙂

william November 4, 2010 at 8:21 am

guppies are very intersting

obinci December 26, 2010 at 6:27 pm

“reticulata species, or commonly known as the Guppy. The Guppy in this picture taken by judhi, does a nice job of posing for the camera.”
How much is realistic?

aily February 1, 2011 at 9:34 am

:’) good memories. This was my Guppy. I had it when i was 7 🙂 im almost 12 now. Haha Firess was his name and he was born in the tank. He died in a friend’s house while we went for vacation. i was really sad. he was my favorite

Rosma March 29, 2011 at 8:33 am

I was excited to see my pregnant guppy given birth. Suddenly i dont know what happen to him,He died after 6 hours i left to somewhere. My daughter was crying..I also sad

guppy101 January 10, 2014 at 8:05 pm

i have two guppys they race each other alot

Leave a Comment

{ 2 trackbacks }

Previous post:

Next post: