Ultum Nature Systems Controsoil Freshwater Aquarium Soil, Black Normal 3 L

Ultum Nature Systems Controsoil is a volcanic-ash freshwater aqua soil substrate for planted aquariums, with granules designed to support oxygen exchange and nutrient availability.

• Granule composition and sizes support oxygen exchange and provide rich nutrients for aquatic plants.
• Suitable for freshwater fish and shrimp that prefer slightly acidic water.
• Low ammonia release promotes the growth of beneficial bacteria.
• No rinsing is required; the substrate absorbs impurities to help clarify cloudy water.
• Buffers water to a slightly acidic pH and lowers kH to support plant nutrient consumption.

For aquariums with live plants, the substrate beneath the water can influence both plant-growing conditions and water chemistry. Controsoil is made for planted freshwater setups, including aquascaping and live plant propagation, while also suiting fish and shrimp that prefer slightly acidic conditions.

How does Controsoil support planted aquariums?

Its granule composition and sizes are designed to allow oxygen exchange and provide nutrients for aquatic plants. The volcanic-ash substrate is identified as 6.8 pH and is intended to create water conditions that help plants consume nutrients. It also buffers pH toward slightly acidic water and lowers total water hardness (kH).

• Made for planted aquariums and live plant propagation.
• Supports an environment with lower kH for aquatic plant nutrient consumption.

Can I use it with freshwater fish and shrimp?

Yes. Controsoil is suitable for freshwater inhabitants, including tropical fish and shrimp, when they prefer slightly acidic aquarium water. Its low ammonia release also promotes beneficial bacteria growth, a useful feature when establishing a planted aquarium.

• Freshwater use for fish and shrimp.
• Designed for inhabitants suited to slightly acidic water.

Does Controsoil need rinsing, and what comes in this option?

No rinsing is required before use. The substrate actively absorbs impurities to help clarify and detoxify cloudy water. This option is black, in the Normal grade, and contains 3 liters (0.79 US gal) of aqua soil; use that volume when choosing how much substrate to purchase for your aquarium.

• Color: black.
• Grade: Normal.
• Package quantity: 3 liters (0.79 US gal).

Controsoil is suited to aquarists building a planted freshwater aquarium or aquascape with plants and compatible fish or shrimp. Its volcanic-ash granules combine plant-focused substrate features with slightly acidic water buffering in a 3-liter black Normal option.