BlackWater Drop 10g – black alder cones, 50 pieces
Black alder cones (10 g, about 50 pieces) for hobbyists who want to lower pH and KH gradually and give…
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This product suits aquarists keeping tropical fish, shrimp and planted or biotope tanks who want to lower pH and KH without chemical buffers. Black alder cones are placed directly in the water, so no preparation is needed before dosing.
Why it matters
- Lowers pH naturally, bringing slightly acidic water to around 6.8 or lower according to the supplier.
- Releases tannins and humic acids, which give the water a light amber, tea-like colour.
- May gently reduce KH, which helps maintain conditions suited to tropical species.
- Works for roughly 2 to 4 weeks, so the effect has to be monitored and the dose adjusted over time.
Specifications
- Contents: 10 g of black alder cones
- Piece count: about 50 (+/- 5), typically 50 to 55 pieces per pack
- Recommended dosage: about 1 cone per 10 litres of water
- Weight: 0.03 kg
- Brand: Kruger Meier
- Symbol: KM BLACKWATER DROP 50 SZTUK
- EAN: 5907059405303
What it works with
The cones are recommended for tanks with bettas, neon tetras, kuhli loaches and shrimp, where softer, slightly acidic water is preferred. Because cone size and weight vary with their natural origin, the number of cones should be matched to the actual water volume, and in very soft water the pH effect may be stronger, so parameters should be checked regularly.
Technical specification
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Frequently asked questions
The recommended dose is about 1 cone per 10 liters of water. The pack contains around 50 cones (+/- 5 pieces), and typically 50 to 55 pieces.
No, they can be placed directly into the aquarium without any additional preparation.
They usually work for about 2 to 4 weeks. In very soft water the pH-lowering effect may be stronger, so it is worth checking your water parameters regularly.
The amber color comes from natural tannins and humic acids released by the cones, and the manufacturer describes it as completely natural and safe for fish and shrimp.
They can gradually lower pH to around 6.8 or below and may also slightly reduce KH. The effect depends on your water, so measure pH and KH regularly to track the change.
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