Our recommended substrate choice for beginners!
Controsoil is available in various bag, granule sizes and colors to accommodate user preference and aquatic plant choice.
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Choosing a quality planted aquarium substrate is an essential part of a nature aquarium as it 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.

Why we like UNS Controsoil:

No rinsing required
No excessive nutrient leeching means little to no algae growth
Buffers water to slightly acidic pH for better aquatic plant nutrient consumption environment
Suitable for all freshwater inhabitants such as tropical fish and shrimp that prefer slightly acidic aquarium water
Comes in 3 different granule sizes that provide optimal oxygen exchange
2 different color choices available

How much Ultum Nature Systems x  Marfied Controsoil do I need?
The general rule of thumb is one 3L bag per 5 gallons or one 10L bag per 20 gallons 
One 10L bag will fill a with approximately 2” of substrate

[Tank Length x Tank Depth x Desired Substrate Height (inches)] / 60 = Total liters of Controsoil required

What's the difference between Ultum Nature Systems x Marfied Controsoil Normal and Extra Fine?
Extra Fine features smaller granules of soil which is beneficial for plants with shorter and less developed roots which is common with foreground plants. Our recommended granule size for aquatic plants such as Micranthemum 'Monte Carlo’, Hemianthus Callitrichoides ‘Cuba' and other similar sized plants.