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Ultum Nature Systems Controsand is a high-quality line of decorative substrates developed for planted aquariums and nature-style aquascaping. Kona Controsand features smooth, rounded pebbles in deeper, earthy tones—ideal for creating striking contrast or enhancing the visual balance in freshwater aquariums. Kona works beautifully as a standalone substrate or can be blended with other materials to craft custom aquascapes, terrariums, and paludariums.
As with all Controsand varieties, Kona is easy to use for aquascapers of any skill level. Rinse gently to remove fine debris, then distribute in your aquarium as a natural accent or base layer for a bold, organic effect.
Versatile, Deep-Tone Gravel
Kona’s rich, dark pebbles offer excellent contrast and can be used to support vibrant aquascapes or mixed for a layered, custom substrate look.
Root Development Support
The granule size and composition allow plant roots to anchor securely and access nutrients efficiently.
Safe for Bottom-Dwellers
Smooth, rounded grains are ideal for shrimp and other bottom-dwelling species that sift through the substrate.
Approximate Grain Size: 3 ~ 5 mm
Available Sizes: 3L and 8L bags
1x bag of UNS Controsand - Kona
