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Alder Cones for Natural Water Care and Look


Dennerle Black (Alder) cones contain beneficial humic and tannic compounds that provide natural care and protection for fish in aquariums. A great addition to add a more naturalistic look to your aquascape.

Dennerle Black Cones

    • For near-natural tropical-like aquarium water
    • Promote well-being, vitality, and readiness for spawning
    • Prevent fungal diseases of fish and spawning fungus
    • Mildly acidify and stabilize the pH value
    • Especially recommended for fish from black water regions, such as discus, neons, angelfish, dwarf cichlids, antenna catfish, etc
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