Low ammonia release promotes beneficial bacteria growth for a healthier aquarium ecosystem
pH-buffering volcanic ash maintains slightly acidic water, ideal for tropical fish and shrimp
No rinsing required for immediate use, simplifying setup and maintenance
Granule structure holds shape over time, reducing debris and keeping water clear
Available in multiple granule sizes and colors to suit various aquascaping needs
Summarized by Shop
UNS Controsoil is our recommended aquasoil for beginners and one of the most versatile planted aquarium substrates available. Made from a blend of natural soil and volcanic ash, it features a low-nutrient composition and impurity-absorbing properties that give aquascapers greater control over when and how nutrients are introduced into the
Material
Volcanic ash-based substrate
Color
Black
Granule Sizes
Extra fine (1 mm), Fine (3 mm), Normal (5 mm)
pH Range
6.8–7.2
Package Sizes
1 L (2 lb), 3 L, 10 L
Form
Granules
Summarized by Shop
4.9
120 ratings
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Aqua soil
Good size grain that makes it’s easy to plants. Easy to place rocks and driftwood into. Natural color to really bring the tank together. I currently am using it in 5 gallon shrimp tank and it helping the plants grow.
J
JACK · August 21, 2026
So Far So Good
T
T · August 20, 2026
I’ve used several different types of substrate soil and this one is by far my favorite. Highly recommend.