Lemon Cobra Guppy

Lemon Cobra Guppy
Latin name:
(Poecilia reticulata)

Care Level





Green, Yellow



Preferred Conditions

64-82° F, KH 10-30, pH 5.5-8.0

Avg. Max Size


Minimum Tank Size

10 gallons


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Are you captivated by the beauty of the Lemon Cobra Guppy? With its striking colors and patterns, this fish is a true showstopper in any aquarium. If you’re considering adding one to your collection, read on to learn everything you need to know about its care, breeding, and how to create a thriving habitat for this mesmerizing fish.

Lemon Cobra Guppy: An Overview

The Lemon Cobra Guppy is a popular freshwater fish known for its vibrant yellow and black coloration. This fish is a relatively small species, with males typically reaching a maximum length of about 2 inches. They have a slender body with a long, flowing tail fin. The Lemon Cobra Guppy is a peaceful and social fish that can be kept in a community aquarium with other peaceful species.

Characteristics of the Lemon Cobra Guppy, Male

  • Size: Males typically reach a maximum length of about 2 inches.
  • Coloration: Vibrant yellow and black coloration.
  • Body Shape: Slender body with a long, flowing tail fin.
  • Temperament: Peaceful and social.

Care and Maintenance of the Lemon Cobra Guppy, Male

The Lemon Cobra Guppy is a relatively easy fish to care for. However, there are a few things you need to keep in mind to ensure its health and well-being.

Water Parameters

  • Temperature: 72-82°F (22-28°C)
  • pH: 6.5-7.5
  • Hardness: 5-15 dGH

Tank Size

A 10-gallon tank is the minimum size for a single Lemon Cobra Guppy, Male. However, a larger tank is always better, as it will provide more swimming space and help to reduce aggression.


A good quality filter is essential for maintaining clean water in your aquarium. Choose a filter that is rated for a tank size that is larger than your actual tank size.


The Lemon Cobra Guppy does not have any specific substrate requirements. However, a fine gravel or sand substrate is a good choice.


Live plants are a great addition to any aquarium, and they can provide hiding places and enrichment for your fish. Some good choices for the Lemon Cobra Guppy include Java fern, Amazon sword, and water sprite.


The Lemon Cobra Guppy is an omnivore and will eat a variety of foods. A good quality flake food is a good staple diet, but you can also offer your fish live or frozen foods, such as brine shrimp, daphnia, and bloodworms.

What are some good tankmates for a Lemon Cobra Guppy?

Lemon Cobra Guppies, a lively and colorful kind of freshwater fish, are well-regarded for their eye-catching beauty and calm temperament. To maintain a peaceful aquarium environment, it’s crucial to select compatible tankmates for Lemon Cobra Guppies that have comparable water condition preferences. Here are a few recommended tankmates for Lemon Cobra Guppies:

  1. Other Guppies: Since guppies generally get along well with each other, mixing different types and colors can create a visually appealing tank without increasing aggression.
  2. Tetras: Small, peaceful tetras like Neon Tetras, Cardinal Tetras, or Rummy-Nose Tetras are great choices. Their calm nature and similar water requirements make them compatible with guppies.
  3. Corydoras Catfish: These bottom dwellers are peaceful and help keep the tank clean by eating leftover food. They are hardy fish that get along well with guppies.
  4. Mollies and Platies: These are also livebearers and have a peaceful temperament similar to guppies. They can coexist well, but be mindful of the tank size to avoid overcrowding.
  5. Dwarf Gouramis: These are peaceful, colorful fish that can share a tank with guppies without issues. However, ensure the tank is spacious enough as gouramis can grow larger than guppies.
  6. Shrimp and Snails: Invertebrates like Cherry Shrimp or Nerite Snails are excellent for adding diversity to the tank without risking aggression. They also help with algae control.
  7. Rasboras: Small rasboras, such as Harlequin Rasboras or Chili Rasboras, are peaceful schooling fish that can add movement and color to the mid-water levels of the tank.

When introducing new tankmates, it’s crucial to monitor the aquarium for any signs of stress or aggression, especially during the initial period. Also, ensure that the aquarium is large enough to accommodate the needs of all inhabitants, with plenty of hiding spots and swimming space to reduce stress and competition for territory. Regular maintenance, including water changes and monitoring of water parameters, is essential to maintain a healthy and balanced aquarium environment for your Lemon Cobra Guppies and their tankmates.

Breeding the Lemon Cobra Guppy, Male

The Lemon Cobra Guppy is a relatively easy fish to breed. However, there are a few things you need to do to ensure success.

Selecting a Breeding Pair

The first step is to select a healthy breeding pair. The male should be vibrant and active, while the female should be plump and have a rounded belly.

Setting Up a Breeding Tank

Once you have selected a breeding pair, you need to set up a breeding tank. The tank should be at least 10 gallons in size and should have a sponge filter and a heater. The water should be conditioned to match the parameters of the main tank.

Introducing the Breeding Pair

Once the breeding tank is ready, you can introduce the breeding pair. It is important to monitor the pair closely to ensure that they are not fighting. If they are fighting, you should separate them immediately.

Caring for the Fry

The female Lemon Cobra Guppy will give birth to live fry. The fry are very small and need to be fed a special diet of infusoria or baby brine shrimp. You should also keep the water in the fry tank very clean.

The Lemon Cobra Guppy is a beautiful and easy-to-care-for fish that is a great addition to any aquarium. With proper care and maintenance, your Lemon Cobra Guppy can live for up to 3 years.