The Oase ScaperLine Black Soil is an outstanding choice for planted aquariums and aquascapes. Made...The Oase ScaperLine Black Soil is an outstanding choice for planted aquariums and aquascapes. Made from volcanic ash and Kurobokudo, this active substrate lowers the hardness of the water, looks stunning and promotes terrific plant growth. By softening the water it creates a slightly acidic pH range that is favourable for most aquarium plants as it makes it easier for them to take in nutrients. The active soil also absorbs nutrients from the water and releases them again when required. This buffer effect is ideal for long-lasting, sustained, healthy plant growth. The 2-4mm grain size of the Oase ScaperLine Black Soil is perfect for any sized aquascape and gives the plant roots a good firm hold. The soil grains are baked at lower temperatures and are agreeably robust but not too dense. The soil resists compaction to let roots grow freely through it in your aquascape. ScaperLine Black Soil is suitable for use directly from the bag with no washing necessary. The active soil influences the water values and adjusts their pH range in a way that is favourable to most aquarium plants. The values may vary depending on the fish species being kept. Active soil can both absorb and release nutrients from the water – the buffer effect is ideal for good plant growth. The grain size of our ScaperLine soil is ideal for small, medium-sized and also larger aquascapes and provides good support for the plant roots. The aquascaping soils of the OASE ScaperLine are available in the classic substrate colours of black and brown – and are also ideal for creating beautiful colour effects on the substrate. You do not need to wash out the active soil before using it in your aquascape; it is poured into the aquarium dry and modelled there without the water getting cloudy.
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Product Information
Full details
The Oase ScaperLine Black Soil is a premium active substrate specifically designed for aquascapers and hobbyists seeking to cultivate thriving planted aquariums. By leveraging a blend of volcanic ash and Kurobokudo, this substrate promotes healthy plant growth through its nutrient-buffering capabilities and water-softening properties, though users should note that its active nature will influence existing water chemistry, which may not be suitable for all fish species.
All features
Brand
Oase
Extended Product Information
FAQs
Do I need to wash the Oase ScaperLine soil before use?
No. The soil is specifically designed to be used directly from the bag without washing to maintain its active mineral composition.
Will this soil change my water parameters?
Yes. It is an active substrate designed to lower water hardness and pH to create an ideal environment for most aquatic plants.
How long does the 'active' effect last?
The duration of the active buffering effect depends on your water change frequency and mineral content of your tap water, but it is formulated for long-lasting performance.
Can I use this for my goldfish tank?
This soil is best suited for planted aquariums. Goldfish often dig heavily and produce high bioloads that may not be compatible with the substrate's buffering capacity.
What is the grain size?
The grain size is 2-4mm, which is perfectly sized for both small and large aquascapes.
Troubleshooting
Water appears cloudy after filling
The cloudiness is typically caused by improper filling. Ensure you use a plate or bowl to break the water stream when pouring. Cloudiness should settle within a few hours with filtration running.
Plants are struggling despite the active soil
Verify that your lighting and CO2 levels are appropriate for the plant species. The soil supports nutrition, but cannot replace adequate light and carbon.
Pros and Cons
Pros
Promotes faster and healthier root development
Creates a stable long-term nutrient buffer
Provides a sophisticated, natural black aesthetic
No rinsing or washing required before installation
Resists compaction over long periods
Cons
Alters water chemistry, requiring monitoring for sensitive fish
Active properties can deplete over time, eventually requiring supplement usage
Not intended for marine or brackish water environments
Setup, Compatibility & Care
Planning: Calculate the amount needed based on your tank dimensions to achieve the desired slope; the soil can be modeled easily while dry.
Installation: Pour the substrate directly into the empty aquarium. Do not rinse the soil, as this can disrupt the delicate balance of active minerals.
Hardscaping: Place your wood, stone, and larger rocks before planting to ensure a stable structure.
Planting: Gently mist the substrate to dampen it, which makes planting significantly easier. Use aquascaping tweezers to place roots into the soil.
Filling: When filling the tank, place a plate or plastic bag over the soil to disperse the water flow, preventing the substrate from shifting.
Compatibility: While excellent for plants and many freshwater fish, check the sensitivity of your specific fish species to acidic, soft-water conditions before introduction.