Black River 1kg – black cat litter, 2–4mm
Washed black aquarium gravel, 2-4 mm grain, sold in 1 kg packs. Intended for aquarists who want a dark main…
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Find a productProduct description
This black gravel suits aquarium keepers who need a dark substrate for a planted tank or a decorative element such as an island or river bed. The supplier describes it as natural gravel taken from aquatic environments, not construction aggregate, which is the main concern when choosing a substrate for living plants and fish.
Why it matters
- Natural origin: the supplier states the gravel is sourced from aquatic environments and is not construction material, which addresses the risk of unknown chemical residues.
- Washed and seeded with bacteria: the gravel is rinsed at the factory and colonised with nitrifying bacteria. Because of transport abrasion, a dust film may form, so rinsing before use is required.
- Plant-friendly: the supplier confirms that plants can be planted directly in this substrate.
- Dark colour and porous structure: according to the supplier, the colour and structure, together with neutrality towards water, are meant to limit algae growth. This is a manufacturer claim, not independently verified.
Specifications
- Colour: black
- Grain size: 2-4 mm
- Package size: 1 kg
- Gross weight: 1.22 kg
- Brand: Eco Plant
- Symbol: ECO PLANT BLACK RIVER
- EAN: 5903900046787
What it works with
The gravel is listed in the aquarium substrate category and can be used as a main bed or as a decorative feature. Because it is delivered wet and colonised with bacteria, rinse it under lukewarm running water before placing it in the tank to remove the dust film and limit the loss of bacteria. Pair it with live plants or use it as a contrasting dark feature in a decorated aquarium.
Technical specification
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Frequently asked questions
It can be used both ways: as a main substrate or as a decorative element, for example as an "island" or a "river" in the aquarium. The grain size is 2-4 mm and the color is black.
Yes. During transport some dust and film can form from the stones rubbing against each other, so rinse the gravel under running water. Use lukewarm water, because cold or hot water is not recommended.
Yes, you can plant aquatic plants directly in this substrate.
The gravel is taken straight from water and packed in a double bag, and it is kept moist so that the bacteria living on it stay alive.
According to the manufacturer, the gravel is natural, collected from aquatic environments, and does not cause pH spikes or release harmful substances. It is also said to have a low tendency to promote algae growth due to its color and structure.
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