Choosing the right substrate is key to a successful aquarium, especially for planted aquariums. Basalt sand and gravel are among the best options for aquascaping, thanks to their natural properties that provide optimal conditions for both plants and fish.
What is basalt sand and gravel?
Basalt is a volcanic rock known for its durability and inertness. This means it does not affect the chemistry of the water, which is important for a stable aquarium. Basalt sand and gravel are popular among aquascapists for their density and appearance, which adds a natural feel.
Benefits of basalt sand and gravel for plants:
Neutral pH: Basalt does not release any substances into the water that would affect the pH, which is important for sensitive plants and fish.
Rooting support: Its structure allows plants to root effectively, promoting healthy growth.
Aesthetics: The dark color of basalt provides a beautiful contrast with green plants, creating a visually appealing environment.
Basalt substrate in practice:
Before use, it is advisable to rinse basalt sand and gravel thoroughly to remove fine dust. When arranging the substrate, it is recommended to use a thicker layer at the bottom so that the plants have enough space to root. This type of substrate can be combined with nutrient substrates, which will improve the growth of more demanding plant species.
Basalt sand vs. other types of substrates:
Compared to other substrates such as river gravel or special nutrient substrates, basalt sand offers neutrality and long-term stability. Unlike active substrates that can change water parameters, basalt is a safe choice for any aquarium. However, for more demanding plants, it is advisable to combine it with additional nutrient substrates. 
Basalt sand and gravel provide the ideal foundation for healthy and sustainable plant growth in your aquarium. Their natural properties provide a stable environment and an aesthetically pleasing setting for your aquascape. Whether you are a beginner or an advanced aquascapist, basalt substrate offers you simplicity and efficiency.
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