Sansibar Dark 5kg – black substrate for freshwater and marine aquariums
JBL Sansibar Black is a 5 kg pack of fine black granite sand (0.2–0.6 mm) for freshwater and marine…
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Find a productProduct description
This black substrate suits aquarists who keep plants rooted in the bottom or fish that dig and forage in the sand. Its fine, tightly packed granulation of 0.2–0.6 mm is intended for freshwater and marine aquariums as well as terrariums.
Why it matters
- The 0.2–0.6 mm grain and close packing give plant roots a firm hold and help keep humus and other debris from working into the substrate.
- The manufacturer states that the substrate does not release harmful substances into the water.
- Fine granite sand protects the sensitive barbels of bottom-dwelling fish, which need a substrate without sharp edges.
- The black colour avoids light reflections, so shy animals feel more secure and the colours of plants and fish look more natural.
Specifications
- Brand: JBL
- Symbol: JBL SANSIBAR BLACK 5KG
- EAN: 4014162670502
- Grain size: 0.2–0.6 mm
- Colour: black
- Material: granite sand
- Net weight: 5 kg
- Package weight: 6 kg
- Suitable for: freshwater aquariums, marine aquariums, terrariums
What it works with
This is a fine substrate, so it is not suitable for underfloor heating, which requires a medium to coarse substrate for proper water circulation. Rinse it briefly under tap water before use to remove the dust produced during transport. The manufacturer recommends placing it over a nutrient substrate such as JBL AquaBasis to support plant growth.
Technical specification
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Frequently asked questions
The substrate has a grain size of 0.2–0.6 mm, which the manufacturer describes as giving plants good grip and limiting the penetration of humus and other debris into the substrate. Before use, rinse it briefly under tap water to remove the dust produced during transport.
The fine granite sand is described as protecting sensitive barbels of bottom-dwelling fish, and the substrate has no sharp edges, which is important for fish that sift through the bottom. The manufacturer also states that it does not release undesirable harmful substances into the water.
Yes, the product is listed for both freshwater and marine aquariums, as well as terrariums. Its dark colour is meant to avoid light reflections, which makes shy animals feel more comfortable.
Underfloor heating is recommended only for medium-to-coarse substrates, because very fine material prevents proper water circulation. This substrate is fine-grained at 0.2–0.6 mm, so it is worth checking this before installing underfloor heating.
The manufacturer recommends placing the substrate over a nutrient base, JBL AquaBasis, to support plant growth. The product weighs 6 kg in its 5 kg package, so plan for its weight when setting up the aquarium.
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