Dennerle Black Cones

Dennerle Black Cones, available from Swell UK, are the mature, dried cones of the black alder, Alnus glutinosa, which contain valuable humic and tanning substances which protect and benefit aquarium fish by natural means.

Product characteristics at a glance:

• Ideal for fish from tropical black water regions, such as discus, neons, scalares, dwarf cichlids, long-whiskered catfish, etc.
• For aquarium water similar to the natural tropical aquatic habitat.
• Promote well-being, vitality and spawning instincts.
• Prevent fungal diseases and spawn mould in fish.
• Have a slight acidifying effect and stabilise the pH value.
• Pure, natural product.
• 40g for approx 1,200 litre.

Dosage:

4-6 cones per 100 litres of aquarium water every 2-3 weeks.

Unlimited storage life in dry conditions.