Product Overview Ultum Nature Systems Controsoil Brown is a volcanic ash-based aquarium soil from Japan designed to support healthy planted tanks. Selecting the right substrate is foundational not only for aquatic plants to flourish, but also for maintaining optimal water parameters for sensitive livestock like dwarf shrimp and tropical fish. While other substrates might leach excessive ammonia (NH3) and trigger the dreaded "new tank syndrome", resulting in cloudy water and aggressive initial algae spikes, Controsoil keeps initial ammonia release minimal while buffering alkaline water to a slightly acidic pH below 7.0. This natural parameter control simplifies early tank maintenance and creates a stable aquatic ecosystem right out of the bag without daily water changes as the tank establishes itself. Offered in Extra Fine (~1mm), Fine (~3mm), and Normal (~5mm) granule sizes, it provides the ideal foundation for anchoring delicate foreground carpeting species or building a high-impact aquascape for heavy root-feeding plants. This item qualifies for FREE shipping to the contiguous U.S. Shipping to Alaska or Hawaii? Contact us for a custom shipping quote—we’re here to help! Key Features & Benefits Natural soil and volcanic ash composition absorbs impurities and maintains water clarity from initial setup. Natural parameter control buffers alkaline water below 7.0 pH and lowers total hardness for soft-water species. Controlled low ammonia release prevents initial algae blooms while simplifying early aquarium establishment. Durable granule structure resists breakdown over time to prevent compaction and encourage deep root growth. Usage & Application Guidelines Do not rinse this aquarium soil before placing it into your tank. Distribute the granules to achieve a depth of two to three inches sloping toward the back glass to support root systems and build visual perspective. Fill the aquarium gently by pouring water over a plate or plastic wrap to keep the substrate layer undisturbed. Monitor pH and KH levels while cycling your aquarium, ensuring ammonia and nitrites read zero before introducing livestock. Quick Facts & Specifications Listed information should be treated as general guidelines only. Team Buce Plant encourages you to do thorough research to ensure healthy growth! Granule Size Comparison Attribute Specification Extra Fine (~1mm) Ideal Application & Plants: Foreground carpet plants (HC Cuba, Monte Carlo) & nano tanks (
