What Water to Use in Planted Aquarium

For aquarists who have a planted aquarium, choosing the right type of water for their aquarium is essential. The type of water used can affect the growth and health of aquatic plants, as well as the fish and other creatures living in the aquarium. In this article, we will explore the different types of water and which one is best suited for a planted aquarium.

Tap Water

Many aquarium owners use tap water to fill their tanks, but this option comes with some considerations. Tap water is often treated with chlorine, which is harmful to fish and plants. Chloramines, a combination of chlorine and ammonia, are also found in some tap water, which can be toxic for aquatic life. To make tap water safe for aquarium use, you can use a water conditioner that neutralizes the chlorine and chloramines. It is also crucial to test the water's pH level, as some tap water has high levels of carbonate hardness, which influence the pH level of the aquarium.

Reverse Osmosis (RO) Water

RO water is considered the purest form of water for aquarium use. It is created by filtering tap water through a membrane that removes impurities, such as minerals, chlorine, and bacteria present in the water. While RO water is ideal for sensitive fish species, it may remove beneficial minerals required for aquatic plant growth. If using RO water, supplementing the water with appropriate minerals or using a plant-focused aquarium fertilizer can help to add the necessary nutrients for plant growth.

Distilled Water

Distilled water undergoes the same filtration process as RO water, but it also removes all minerals and chemicals present in the water. Distilled water lacks the essential minerals required for plant growth and fish health and should not be used as the primary source of water for planted aquariums. However, it can be a useful resource while dealing with specific water quality issues in the aquarium.

Spring Water

Spring water is another option for freshwater aquariums. It comes from natural sources and contains minerals needed for aquatic plant growth and fish health. However, using spring water from the bottle can be expensive and unnecessary. Spring water quality depends on several factors, such as the source, how it is bottled, and its storage condition. Using water from a natural spring can be a viable option if it is available and tested for aquarium use.

Conclusion

Every type of water has its advantages and shortcomings, and selecting the right one for your planted aquarium depends on your specific needs. As a general rule, it is recommended to use the water source readily available to you, such as tap water, and prepare it for aquarium use properly. Additionally, supplementing the water with appropriate minerals and nutrients can help to provide an optimal environment for aquatic plant growth and fish health.