The 5 Best Guppy Varieties for Nano Tanks: Space-Saving Options

tbe best guppies for nano tanks

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The 5 Best Guppy Varieties for Nano Tanks: Space-Saving Options

Nano tanks have gained popularity among aquarium enthusiasts for their compact size and space-saving benefits. These smaller aquariums, typically ranging from 2 to 10 gallons in capacity, offer an excellent opportunity to create stunning aquatic ecosystems in limited spaces. Guppies, known for their vibrant colors and ease of care, are an ideal choice for nano tanks. In this blog post, we’ll explore various guppy varieties that are perfectly suited for these compact aquariums, allowing you to enjoy the beauty of these fish while maximizing your space.

Nano Tanks: A Space-Saving Delight

Before we dive into guppy varieties, let’s take a moment to appreciate the charm of nano tanks. Nano tanks offer several advantages, such as:

  1. Space Efficiency: Perfect for small apartments, offices, or dorm rooms, nano tanks take up minimal space while delivering maximum visual impact.
  2. Low Maintenance: Nano tanks require less maintenance than larger aquariums, making them an excellent choice for beginners or anyone with a busy lifestyle.
  3. Affordability: Setting up and maintaining a nano tank can be more cost-effective than larger setups, from equipment to water changes.
  4. Artistic Freedom: Nano tanks allow for creativity with aquascaping and design, creating a miniature underwater world.

Now, let’s explore some guppy varieties that are well-suited for nano tanks. Top 100 Most Beautiful Guppy Varieties You Should Know About

1. Endler’s Guppy (Poecilia wingei)

Endler’s guppy, often considered a cousin to the common guppy (Poecilia reticulata), is an ideal choice for nano tanks. These tiny fish are known for their vibrant colors, and they don’t grow as large as the standard guppies, making them perfectly suited for small aquariums.


  • Size: Around 1 inch
  • Colors: A wide range of colors, often with striking patterns and metallic hues.
  • Behavior: Peaceful and social, perfect for community nano tanks.
  • Care: Easy to care for, making them suitable for beginners.

2. Moscow Guppy

The Moscow guppy is prized for its stunning, solid coloration and elegant fins. These fish are small, making them a great choice for nano tanks, where their vibrant colors can truly shine.


  • Size: Approximately 1.5 inches
  • Colors: Typically single solid color (e.g., red, blue, black)
  • Behavior: Peaceful and sociable, excellent tank mates for other guppies.
  • Care: Straightforward care requirements, well-suited for nano setups.

3. Albino Full Red Guppy

Albino Full Red Guppies come in a remarkable array of colors and patterns, often with elaborate tails and fins. While some Albino Full Red Guppies may grow larger, you can select smaller varieties or opt for a male-only tank to keep them within the confines of a nano tank.


  • Size: Varies, but smaller variants are suitable for nano tanks.
  • Colors: Red, with striking patterns and vibrant hues.
  • Behavior: Peaceful, makes a great nano tank option
  • Care: Requires regular water changes and good water quality.

4. Blue Lace Guppy

The Blue Lace guppy is renowned for its striking blue coloration and distinctive appearance. These guppies are relatively small and well-suited for nano tanks, where their color can create a mesmerizing focal point.


  • Size: Typically under 2 inches
  • Colors: Predominantly blue, with metallic or iridescent hues.
  • Behavior: Peaceful and social, great for community nano tanks.
  • Care: Requires a well-maintained aquarium with good filtration.

5. Dwarf Blue Panda Guppy

Panda guppies are beloved for their eye-catching panda-like coloration, with contrasting black and white markings. These guppies are small and add a unique charm to nano tanks.


  • Size: About 1.5 inches
  • Colors: Black and white patterns resembling a panda.
  • Behavior: Peaceful and easygoing, making them suitable for community nano setups.
  • Care: Regular water changes and a well-established tank.

How to Set up Nano Tank for guppies

Setting up a nano tank for guppies can be a rewarding and enjoyable experience. Nano tanks are smaller in size, typically ranging from 2 to 10 gallons, and require careful planning and maintenance to create a thriving aquatic environment for your guppies. Here’s a step-by-step guide on how to set up a nano tank for guppies:

Materials and Equipment:

Before you start, gather all the necessary materials and equipment, including:

  • Nano tank (2 to 10 gallons)
  • Heater
  • Filter
  • Substrate (gravel or sand)
  • Plants (live or artificial)
  • Decorations (rocks, driftwood, or ornaments)
  • Water conditioner
  • Aquarium test kit
  • Guppy fish
  • Fish food
  • Thermometer
  • Lighting (optional but beneficial)

Step 1: Selecting the Right Tank

Choose a nano tank with a suitable size for guppies. Keep in mind that guppies are active swimmers, so a tank with a longer footprint is better than a tall one. A 5 to 10-gallon tank is an ideal choice for a small group of guppies.

Step 2: Setting up the Tank

  1. Rinse the substrate thoroughly to remove any dust or debris. Place it at the bottom of the tank, creating a sloping effect from back to front for aesthetic appeal.
  2. Add any decorations, rocks, or driftwood you want to use, ensuring they don’t overcrowd the tank. Guppies appreciate places to hide and explore.
  3. Fill the tank with dechlorinated water. Use a heater to maintain a stable water temperature between 75-82°F (24-28°C), as guppies are tropical fish.
  4. Install a suitable filter to maintain water quality. A gentle filter is preferable to avoid strong currents in a small tank.
  5. If you choose live plants, place them strategically in the substrate. Live plants not only enhance the tank’s aesthetics but also help maintain water quality by absorbing nitrates.

Step 3: Cycling the Tank

Before adding any fish, you need to cycle the tank to establish a stable biological filter. This process can take several weeks, but it’s essential for the health of your guppies. To cycle your tank:

  1. Add a source of ammonia, such as fish food, to kick-start the cycling process.
  2. Monitor water parameters (ammonia, nitrite, nitrate) using an aquarium test kit. The cycle is complete when ammonia and nitrite levels are consistently zero, and nitrates are present.
  3. Perform regular water changes to keep ammonia and nitrite levels in check.

Step 4: Adding Guppies

Once your tank is cycled, you can introduce your guppies. Start with a small group (2-4) of guppies. Ensure they are acclimated to the water temperature and quality to minimize stress.

Step 5: Maintenance and Care

Owning a nano tank comes with some maintenance responsibilities:

  1. Feed your guppies a varied diet of high-quality flake or pellet food. Guppies also enjoy occasional treats like freeze-dried or live foods.
  2. Monitor water parameters regularly and maintain good water quality with routine water changes (10-20% every 1-2 weeks).
  3. Clean the filter and remove any debris from the tank during water changes.
  4. Keep an eye on your guppies for signs of illness or stress, and act promptly if any issues arise.
  5. Consider using a timer for the tank’s lighting to provide a consistent day-night cycle for your guppies.

By following these steps and providing proper care, you can create a beautiful and healthy nano tank for your guppies. Enjoy observing their vibrant colors and playful behavior in your space-saving aquatic paradise.


Guppy varieties offer a dazzling array of colors, patterns, and fin shapes, making them an excellent choice for nano tanks. These small, space-saving aquariums can become captivating works of art, and guppies add their charm to these miniature aquatic ecosystems. By selecting guppy varieties known for their smaller size and vibrant appearances, you can create a visually stunning and low-maintenance nano tank that fits perfectly into even the smallest living spaces. Explore your options and let your creativity shine in the world of nano guppy keeping.

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Lee Johnson

Lee Johnson

Aquarium Enthusiast

I love sharing my knowledge about all things aquarium related. I have been keeping aquariums for over 20 years and cannot imagine a life without an aquarium. 

Lee Johnson
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