Updated: October 25, 2022

Growing freshwater plants indoors is a great way to add color and life to your home aquarium or terrarium. Not only do they look great, but they also provide many benefits for your aquatic pets, such as improved water quality and oxygenation. In this article, we will discuss everything you need to know to successfully grow freshwater plants indoors.

Choosing the Right Plants

The first step in growing freshwater plants indoors is choosing the right plants for your aquarium or terrarium. Some plants require high light and nutrient levels, while others can thrive in low light conditions with minimal care. Here are a few popular options:

  • Java Fern: This plant is perfect for beginners as it can tolerate low light and does not require much maintenance. It can attach itself to rocks or driftwood and grow slowly.
  • Anubias: Another low-maintenance plant that can grow in low light conditions. It can be attached to rocks or driftwood and grows slowly.
  • Amazon Sword: This plant requires higher light levels but is relatively easy to care for. It can grow up to 20 inches tall and is perfect for larger aquariums.

Lighting

Lighting is an essential factor when growing freshwater plants indoors. Most plants require at least 6 hours of light per day, but some may require more depending on their specific needs. There are different types of lighting options available, including fluorescent, LED, and metal halide lights.

Fluorescent lights are the most commonly used type of lighting for freshwater aquariums. They are affordable and come in various sizes and colors that cater to different plant needs. LED lights are more energy-efficient than fluorescent lights, last longer, and produce less heat. They also come in different wavelengths that cater to different plant requirements.

Metal halide lights are the most intense form of lighting available, producing the highest amounts of heat and light intensity. They are usually used for large aquariums and are not suitable for most indoor plants.

Substrate

The substrate you choose is another essential factor when growing freshwater plants indoors. The substrate is the material that lines the bottom of the aquarium, and it provides a surface for the plants to root in. Some popular options include:

  • Gravel: This is the most common substrate used in aquariums. It is affordable and readily available, but it does not provide many nutrients for plants.
  • Sand: Sand is often used in planted aquariums as it is finer than gravel and allows for better root growth. However, it can be difficult to clean and may require frequent maintenance.
  • Aquasoils: Aquasoils are specially designed substrates that provide nutrients for plants while also helping to maintain water pH levels.

Nutrients

Freshwater plants require nutrients to grow, just like any other plant. In an aquarium environment, fish waste and decaying plant matter can provide some of the necessary nutrients. However, if you want your plants to thrive, you may need to supplement them with additional nutrients.

There are two main types of plant fertilizers: liquid and substrate fertilizers. Liquid fertilizers are added directly to the water column and can provide instant nutrients for your plants. Substrate fertilizers are added to the substrate, where they slowly release nutrients over time.

Maintenance

Growing freshwater plants indoors requires regular maintenance to keep them healthy and thriving. Here are a few tips:

  • Trim your plants regularly to prevent overgrowth and keep them looking neat.
  • Monitor water quality regularly and perform water changes as needed.
  • Check your lighting regularly to ensure it is providing enough light for your plants.
  • Remove any dead or decaying plant matter from the aquarium/terrarium promptly.

FAQ

Can I use tap water to fill my aquarium?

Yes, but you should treat it with a dechlorinator first to remove any harmful chemicals.

How often should I perform water changes?

It depends on the size of your aquarium and the number of fish and plants you have. A general rule of thumb is to perform a 25% water change every two weeks.

Can I grow plants in a terrarium?

Yes, but you will need to ensure there is adequate lighting and moisture levels for the plants.

In conclusion, growing freshwater plants indoors can be a rewarding experience for any aquatic pet owner. By choosing the right plants, providing adequate lighting and nutrients, and performing regular maintenance, you can create a beautiful and thriving underwater ecosystem in your home.