Water conditioner sera Blackwater Aquatan, 100 ml bottle

sera Blackwater Aquatan, 100 ml bottle, is a liquid water conditioner formulated to create blackwater-like conditions in freshwater aquaria while neutralizing harmful substances. The preparation reduces chlorine and chloramine residues, detoxifies heavy metals, and helps stabilize water chemistry to better match tannin-rich, slightly acidic environments preferred by many tropical and ornamental fish. The compact 100 ml bottle is suitable for regular small-dose treatments and for aquarists who keep species that benefit from softened, darker water conditions.

Advantages

sera Blackwater Aquatan combines water detoxification with targeted water conditioning to simulate natural blackwater habitats. It neutralizes disinfectants and heavy metals, conditions tap water to lower pH and hardness within a modest range, and introduces tannin-like compounds that gently tint the water without adding particulate matter. The product helps reduce stress during water changes and supports physiological well-being of fish that prefer slightly acidic, soft water.

Suitable for

• Freshwater aquaria where blackwater conditions are desired
• Community and species tanks housing fish that prefer slightly acidic, tannin-rich water
• Regular water changes to reduce stress and detoxify tap water
• Breeding setups for species that need stable, softer water parameters

Key specifications

• Form: liquid concentrate in 100 ml bottle
• Intended use: conditions freshwater aquaria to simulate blackwater-like chemistry
• Effects: neutralizes chlorine and chloramine, detoxifies heavy metals, introduces tannin-like conditioning
• Suitable water types: freshwater aquaria (not for marine use)
• Dosage sensitivity: designed for small, controlled additions to adjust water chemistry gradually

How to use

Measure and add the recommended dose of sera Blackwater Aquatan directly to aquarium water according to the dosing instructions provided on the product label. Apply during or immediately after water changes to neutralize chlorine and chloramine and to condition the replacement water. For gradual adjustment of pH and hardness or to create a light blackwater tint, use the product in small, repeated doses and monitor water parameters. Avoid overdosing by following label directions and taking into account aquarium volume and livestock sensitivity.

Usage recommendations

Test water parameters regularly when establishing blackwater conditions and adjust dosing progressively. Combine with routine filtration and partial water changes; observe fish behavior and health after initial applications to ensure the adjusted chemistry suits the species kept.