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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
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Description
Dennerle Crystal Quartz Gravel Diamond Black 5kgDennerle Crystal Quartz Gravel (5kg) Diamond Black Dennerle crystal quartz gravel is a classic in the range for many decades one of the best gravels you can use in your aquarium. The excellent appearance and perfect biological function of the Dennerle crystal quartz gravel, which does not harden the water, are probably unique in this combination. Dennerle Crystal Quartz Diamond Black Gravel is lightfast and CO2 resistant, can be used again and again,
Dennerle Crystal Quartz Gravel (5kg) Diamond Black
Dennerle crystal quartz gravel is a classic in the range – for many decades one of the best gravels you can use in your aquarium. The excellent appearance and perfect biological function of the Dennerle crystal quartz gravel, which does not harden the water, are probably unique in this combination.
Dennerle Crystal Quartz Diamond Black Gravel is lightfast and CO2 resistant, can be used again and again, and retains its color even after years. Due to the iron oxide coloring, the quartz gravel is water neutral and guaranteed free of pollutants. The grain size of 1–2 mm suits bottom-dwelling fish and reduces the risk of dirt in the gaps.
The fine quartz Dennerle gravel is also very suitable for plants with fine roots. The use of rounded grains greatly reduces the risk of aquarium animals injuring themselves. The very small gaps that nevertheless exist provide a perfect settlement area for important bacteria. Dennerle quartz gravel does not need to be pre-washed.
- Natural look crystal quartz gravel
- Free from harmful substances
- Diamond black colour
- Protection for bottom dwelling fish due to rounded edges ( grain size 1 – 2 mm )
- Light-resistant
- CO2 resistant and hardness-neutral
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Best sun cap
Size: One Size, Color: (025) Castlerock / Castlerock / Reflective
Lightweight, comfortable, and fits my XL head
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Great running hat.
Size: One Size, Color: (001) Black / Black / Reflective
I absolutely love this hat, it is so cute and great for warm weather. I especially love to run with it, you can tighten it easily so it does not blow off if it is windy.
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Reviewed in the United States on August 17, 2025
★★★★★ 4
Thin and flimsy
Size: One Size, Color: (001) Black / Black / Reflective
Very flimsy hat
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Worth the prize
Size: One Size, Color: (001) Black / Black / Reflective
Light and breathable.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Perfect for running, I love this hat.
Size: One Size, Color: (025) Castlerock / Castlerock / Reflective
This hat is perfect for running in, it's very light weight and breathable so it doesn't get annoying or hot when you're running in the sun. It's easy to clean, just a quick hand wash in the sink and it's dry in 30 minutes. I have a very big head and it's fits me great. If you have a very small head it might be a bit big.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2025
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