Ultum Nature Systems Controsoil Extra Fine Black
A quality planted aquarium substrate provides the foundation for healthy plant growth.
Ultum Nature Systems Controsoil is a natural blend of soil and volcanic ash. Setting it apart from other substrates, Controsoil does not contain high nutrient levels that can cause spikes in ammonia levels. It primarily focuses on impurity absorption and providing balance from the start. This approach makes UNS Controsoil a great choice for all skill levels and allows anyone to create a beautiful aquarium.
Controsoil is available in various granule sizes and colors to accommodate user preference and aquatic plant choice.
| Specification | Details |
|---|---|
| Product Type | Planted aquarium substrate |
| Material | Natural soil and volcanic ash |
| Color | Black |
| Granule Size | Extra Fine |
| Best For | Freshwater aquariums and terrariums |
FAQ
Is Controsoil suitable for beginners in planted aquariums?
Yes, Controsoil is designed to be easy to use and is ideal for beginners due to its balanced composition and low nutrient content, which helps prevent ammonia spikes.
Does Controsoil provide essential nutrients for plant growth?
Controsoil does not contain high nutrient levels. It focuses on impurity absorption and stability rather than direct nutrient supply. Additional fertilizers may be needed for active plant growth.
Can I use Controsoil in a terrarium?
Yes, Controsoil is suitable for both freshwater aquariums and terrariums, making it a versatile option for various aquatic environments.

Faith Carr –
I’ve used Controsoil Extra Fine Black in my 20-gallon tank for three months. The plants have grown steadily without any ammonia issues. The black color blends well with the decor and the substrate feels stable under the plants.
Gabrielle Lee –
The substrate is easy to mix into the tank and doesn’t clump. My anubias and java ferns are thriving. I appreciate that it doesn’t cause nutrient spikes, which was a concern with other substrates I tried.
Diane Hamilton –
I switched from a commercial substrate to Controsoil after reading reviews. The tank has remained stable, and my aquatic plants have grown well. The fine texture helps with root development and looks natural.