How Many White Cloud Minnows Can Safely Live in a 20 Gallon Tank?

Creating a vibrant and thriving aquarium is both an art and a science, and one of the key components is selecting the right mix of fish. White Cloud Minnows are a popular choice among aquarists for their hardiness and striking beauty. In this article, we’ll guide you through everything you need to know about housing White Cloud Minnows in a 20-gallon tank, including tips for maintaining a healthy environment, pros and cons of different tankmates, and much more. So, let’s dive in!

The answer you’re looking for is approximately 10 to 15 White Cloud Minnows. But there’s much more to consider when creating the perfect aquatic haven for these little beauties, so keep reading to ensure their happiness and wellbeing.

To give your White Cloud Minnows the best life possible in a 20-gallon tank, we’ll cover various aspects of aquarium care, from water parameters to feeding and tank setup. So strap in and let’s explore the world of White Cloud Minnows together!

Getting to Know White Cloud Minnows

These small, hardy fish hail from the Pearl River in China, and they are beloved for their stunning colors and low-maintenance requirements. White Cloud Minnows are ideal for beginners, but experienced aquarists can appreciate them too.

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Appearance and Size

  • Males display bright red fins and iridescent silver bodies
  • Females are slightly plainer, with a more subdued color palette
  • They typically grow to about 1.5 inches in length

Behavior and Temperament

  • White Cloud Minnows are peaceful schooling fish
  • They are quite active and will provide eye-catching motion in the tank
  • Enjoy swimming in open areas and thrive when housed with other peaceful fish

Setting Up the Perfect 20-Gallon Tank

Properly setting up your 20-gallon tank is crucial for maintaining the overall health and happiness of your White Cloud Minnows. The following advice is designed to help you achieve that goal.

Optimal Water Parameters

  • Temperature: 64-72°F (18-22°C)
  • pH: 6.0-8.0
  • Hardness: 5-19 dGH

Filtration System

Ensure proper filtration with a dedicated aquarium filter

Substrate and Decorations

  • Use a combination of fine gravel and sand
  • Include plants, driftwood, and rocks for hiding spots


Moderate lighting of around 6-8 hours per day

Tankmates for White Cloud Minnows

White Cloud Minnows are compatible with a range of tankmates, but it’s essential to ensure that their specific needs are met.

Compatible Tankmates

  • Cherry Shrimp
  • Rummy Nose Tetra
  • Cory Catfish
  • Cherry Barbs

Incompatible Tankmates

  • Aggressive or predatory species
  • Larger fish that may see White Cloud Minnows as a snack

Diet and Feeding

White Cloud Minnows are omnivorous and will eat high-quality flake food, freeze-dried or frozen bloodworms, brine shrimp, daphnia, and tubifex worms.

Sample Feeding Schedule

  • Feed 2-3 times per day
  • Offer a variety of foods
  • Adjust amounts to prevent over or underfeeding

Breeding White Cloud Minnows

White Cloud Minnows are relatively easy to breed in the home aquarium, which makes them an attractive hobbyist project.

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Conditions for Breeding

  • Slightly raised temperature around 72°F (22°C)
  • Increase live food portions in their diet
  • Provide plenty of plants for spawning

Frequently Asked Questions

  • Do White Cloud Minnows require a heater?
    • While White Cloud Minnows can tolerate cooler temperatures, maintaining stable conditions with a heater is recommended.
  • Can I keep other species with White Cloud Minnows?
    • Yes, as long as they are peaceful and share similar water parameters.
  • What is the average lifespan of a White Cloud Minnow?
    • With proper care, these fish can live for 3-5 years.
  • Are White Cloud Minnows schooling fish?
    • Yes, they prefer to be in groups of at least 6-8 individuals.
  • Do I need a separate breeding tank for White Cloud Minnows?
    • It’s recommended to set up a separate breeding tank to increase the chances of success and prevent the main tank from being disturbed.


White Cloud Minnows are beautiful, hardy fish that can thrive in a 20-gallon tank if provided with the right conditions. By ensuring a stable environment with clean water and carefully selecting compatible tankmates, you can achieve a diverse and harmonious community within your aquarium. So, go ahead and try your hand at nurturing these wonderful little fish, and you may find yourself pleasantly surprised at how much joy they can bring to your aquascaping adventure.

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