Top 10 Low-Maintenance Aquarium Plants: No Substrate Needed!

Are you dreaming of a lush, vibrant aquarium but intimidated by the complexities of substrate and plant maintenance? This article unveils the top ten low-maintenance aquarium plants that thrive without the need for substrate, making aquatic gardening accessible to everyone. From the hardy Anubias to the rapidly growing Hornwort, we'll explore a diverse range of options perfect for beginners and experienced aquarists alike. These plants not only enhance the visual appeal of your tank but also contribute to a healthier aquatic ecosystem by naturally filtering water and providing essential hiding places for your fish. Get ready to discover the effortless beauty of substrate-free aquatic planting!Forget the fuss and focus on the fun! This curated list showcases easy-to-care-for aquatic plants that require no substrate, simplifying aquarium maintenance significantly. Whether you prefer the elegant simplicity of floating plants like Salvinia or the striking red hues of the Red Tiger Lotus, we've got something for every taste and aquarium setup. Learn about their individual characteristics, growth rates, and optimal conditions to create a thriving underwater paradise with minimal effort. Let's dive into a world of beautiful and uncomplicated aquatic gardening!

Pros And Cons

Bacopa
  • Grows similarly to other stem plants
  • Does well floating
  • Long white roots are a sign of health
Guppy Grass
  • Easiest plant, needs only water
  • Overruns aquarium quickly
  • Shrimp like to cling to it
  • Dark green color looks good with brightly colored fish/shrimp
Hornwort (Coontail)
  • Incredibly fast-growing
  • Useful in removing ammonia and nitrates
  • Goldfish and cichlids tend not to eat it
Java Fern
  • Similar to Anubias (rhizome plant)
  • Looks great in any setup
  • Provides hiding places for baby fish
  • Grows slowly
  • Thrives in a wide variety of water parameters
  • Can get quite big, requiring trimming

Read more: Best 3 Plastic Anubias Aquarium Plants

Anubias: The Hardy Beginner's Choice

Anubias, a rhizome plant, thrives without substrate. Its roots shouldn't be buried, as this can cause rot. Instead, attach it to hardscape like driftwood or rocks.

Close-up of an Anubias plant attached to driftwood.
Close-up of an Anubias plant attached to driftwood.

Nutrients are absorbed through leaves and long white roots. Extremely hardy and ideal for beginners, Anubias is remarkably resilient. It's a great starting point for those new to aquarium plants.

A healthy Anubias plant thriving in an aquarium.
A healthy Anubias plant thriving in an aquarium.

Be cautious of high light, as it can encourage algae growth. This algae can be harmful to the plant, so proper light management is key. Consider using other plants to provide shade or simply reducing lighting intensity.

Hornwort: A Fast-Growing Ammonia & Nitrate Remover

Hornwort (Ceratophyllum demersum), also known as Coontail, is a rapidly growing plant perfect for floating. It requires no substrate and readily reaches the water's surface.

A dense clump of Hornwort floating in an aquarium.
A dense clump of Hornwort floating in an aquarium.

Ideal for goldfish or cichlid tanks due to its needle-like leaves, which are often avoided by these fish. Its significant benefit lies in its exceptional ability to remove ammonia and nitrates from the aquarium water.

Hornwort leaves showcasing their needle-like structure.
Hornwort leaves showcasing their needle-like structure.

Hornwort's growth rate can be astounding, sometimes reaching up to four inches per week. This rapid growth makes it an effective natural filter, constantly working to improve water quality.

Floating Plants: Nature's Aquarium Filter

Floating plants like Salvinia, Frogbit, Duckweed, and Red Root Float, offer a low-maintenance way to enhance your aquarium. They require no planting and float on the water's surface.

Various types of floating plants in a fish tank.
Various types of floating plants in a fish tank.

They efficiently absorb excess nutrients, improving water quality. Moreover, they provide excellent hiding places for fry (baby fish), making them valuable additions to breeding setups.

Close-up of floating plant roots providing shelter.
Close-up of floating plant roots providing shelter.

The roots of these plants provide shelter for young fish. They are easily accessible in fish stores and often found in natural waterways.

Java Moss: A Versatile and Easy-to-Grow Plant

Java moss is commonly attached to driftwood or rocks using super glue. It creates a beautiful mossy look and provides ample hiding spots for small fish and invertebrates.

Java moss attached to driftwood in a beautifully landscaped tank.
Java moss attached to driftwood in a beautifully landscaped tank.

Its bushy structure harbors beneficial bacteria, aiding in aquarium filtration. It's exceptionally easy to grow, but may require regular trimming due to its rapid growth.

A closer look at the texture and growth of Java moss.
A closer look at the texture and growth of Java moss.

Because of its high surface area, it's also great for breeding tanks, providing shelter for fry. It can even be sold commercially once attached to hardscape.

Water Wisteria: A Visually Appealing Addition

Water wisteria (Hygrophila polysperma) is an attractive plant with distinctive leaves and trailing roots. It prefers moderate to high light conditions for optimal growth.

Water wisteria showcasing its unique leaf structure and roots.
Water wisteria showcasing its unique leaf structure and roots.

It may shed older leaves when initially added to an aquarium, adapting to new conditions. With proper care, it grows quickly and healthily. It has a visually appealing look.

A thriving water wisteria plant in an aquarium.
A thriving water wisteria plant in an aquarium.

It adds a unique texture and dimension to any aquarium setup. The long leaves provide an attractive contrast to other plants.

Brazilian Pennywort: Unique and Versatile

Brazilian Pennywort (Hydrocotyle leucocephala) is a visually striking plant that can be floated or attached to hardscape. Its unique appearance makes it a standout.

Brazilian Pennywort growing both in and out of the water.
Brazilian Pennywort growing both in and out of the water.

It is notable for its ability to grow out of the water, making it a perfect choice for paludariums or open-top tanks. This creates a unique look, extending the greenery beyond the waterline.

Brazilian Pennywort attached to a piece of hardscape.
Brazilian Pennywort attached to a piece of hardscape.

It adds a visually interesting element to an aquarium, either floating or climbing up a hardscape. It can be kept floating or attached to hardscape.

Guppy Grass: An Easy-to-Grow Overachiever

Guppy grass is incredibly easy to grow, needing only water to thrive. It's known for its rapid growth, potentially overwhelming an aquarium if not regularly trimmed.

A dense growth of Guppy grass in an aquarium.
A dense growth of Guppy grass in an aquarium.

Shrimp often inhabit its nooks and crannies. Its dark green color contrasts well with brightly colored fish and shrimp. It's an excellent addition to any aquarium.

Shrimp foraging amongst the stems of Guppy grass.
Shrimp foraging amongst the stems of Guppy grass.

It's a perfect choice for beginners who want a low-maintenance, visually appealing plant. Despite its fast growth, it's relatively simple to manage.

Java Fern: A Slow-Growing, Low-Maintenance Plant

Java fern is similar to Anubias; a rhizome plant that attaches easily to hardscape. It needs no substrate and creates natural hiding places for fish.

Java Fern attached to rocks in a fish tank.
Java Fern attached to rocks in a fish tank.

Its growth is relatively slow, requiring less frequent trimming than other plants. Its tall, green leaves add visual appeal to any aquarium setting.

A large, healthy Java Fern plant showing its height and leaf structure.
A large, healthy Java Fern plant showing its height and leaf structure.

It can tolerate a variety of water parameters and it's also easy to find in fish stores. It is a visually appealing and low-maintenance choice.

Bacopa: A Versatile Stem Plant

Bacopa is a stem plant with small, round leaves. It grows similarly to other stem plants like Rotala and Ludwigia.

Bacopa plant showing its small, round leaves.
Bacopa plant showing its small, round leaves.

It can be floated, developing long white roots as it absorbs nutrients from the water column. The appearance of long white roots indicates a healthy plant.

Bacopa floating in the water, showing its extensive root system.
Bacopa floating in the water, showing its extensive root system.

It's a visually appealing and low-maintenance option that can add a unique touch to any aquarium setup.

Red Tiger Lotus: A Vibrant Centerpiece

Red Tiger Lotus (Nymphaea zenkeri) is a bulb plant with vibrant red leaves, making it a stunning centerpiece. It's often used as a focal point in aquarium designs.

A Red Tiger Lotus plant in a fish tank, showcasing its vibrant red leaves.
A Red Tiger Lotus plant in a fish tank, showcasing its vibrant red leaves.

It can be purchased as a fully grown plant or as a bulb/seed that needs to be grown. The bulbs are relatively easy to grow in water.

Close-up of a Red Tiger Lotus bulb.
Close-up of a Red Tiger Lotus bulb.

It adds a splash of bold color to a planted aquarium, creating a visually striking centerpiece. Its vibrant red coloration stands out against green plants.

Conclusion: Choosing the Right Plants for Your Aquarium

This list offers a variety of options for enhancing your aquarium without the hassle of substrate. Each plant has unique characteristics, from rapid growth (Hornwort, Guppy Grass) to slower, more controlled growth (Java Fern, Anubias).

Consider your aquarium setup, fish species, and desired aesthetic when selecting plants. Factors like light levels and water parameters will influence plant health and growth.

Whether you're a beginner or an experienced aquarist, these low-maintenance plants offer a rewarding and visually appealing addition to any aquatic environment. Experiment and find the perfect combination for your personal aquascape!