Brightwell Aquatics Florin Volcanit Rio Escuro-M
Brightwell Aquatics Florin Volcanit Rio Escuro-M
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Brightwell Aquatics Florin Volcanit Rio Escuro-M
Overview
Brightwell Aquatics Florin Volcanit Rio Escuro-M is a medium-grain black volcanic ash substrate created for freshwater planted aquariums and shrimp biotopes. Its oblong, bead-like granules provide a natural dark riverbed look while gently lowering GH and nudging pH below 7, creating soft, slightly acidic conditions ideal for Caridina shrimp, soft-water fish, and rainforest-style planted tanks. The semi-open structure of the substrate bed supports strong root development, good water diffusion, and long-term stability.
Key Features
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Medium black volcanic ash substrate with ~5 mm particles for a natural, river-inspired aesthetic
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Gently binds hardness-causing ions, helping to lower GH and slightly acidify alkaline water (pH < 7)
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Ideal for shrimp biotope aquariums, especially Caridina and other soft-water species
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Provides an excellent rooting medium that promotes strong root systems and nutrient uptake
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Semi-open structure enhances interstitial water circulation, helping keep roots oxygenated
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Supports long-term health of plants, fish, and motile invertebrates that prefer soft, slightly acidic water
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Durable, bead-like granules retain shape over time under typical soft-water conditions
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Made in the USA
Product Specifications
| Specification | Detail |
|---|---|
| Product Name | Brightwell Aquatics Florin Volcanit Rio Escuro-M |
| Substrate Type | Medium black fired volcanic ash base substrate |
| Color | Dark / black (“Escuro”) |
| Grain Size | Approximately 5 mm (medium, oblong beads) |
| Intended Use | Freshwater planted aquariums and shrimp biotopes |
| Water Chemistry Effect | Gradually lowers GH and gently acidifies toward pH < 7 |
| Ideal For | Caridina shrimp, other soft-water shrimp, tetras, rasboras, small rainforest species |
| Plant Benefits | Encourages strong root growth, nutrient uptake, and oxygenated root zones |
| Recommended Depth | ~1.5–3 in (4–8 cm), adjusted to planting density |
| Preparation | Typically no rinsing required; add to empty tank, then fill slowly to avoid cloudiness |
| Usage Notes | Avoid strong alkaline buffers and undergravel filters (reduces lifespan and performance) |
| Country of Origin | Made in the USA |
| Available Sizes | 5 lb, 15 lb, and 23 lb bags |
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