Sera Blackwater Aquatan Water Conditioner, Natural Blackwater Effect 100ml

Sera Blackwater Aquatan is a water conditioner for aquariums that recreates the natural blackwater effect of tropical streams and lakes, giving tap water a dark, clear tone suited to fish, shrimp and crayfish that prefer soft tropical water.

It is designed for aquarium keepers who want their tank water to resemble tropical blackwater habitats. The water color settles into a darker tone that stays in place over time.

Key Ingredients

• Full ingredient list on packaging

How to Use

1. Test your tap water and confirm the dosing amount for your tank volume before use.
2. Add the recommended dose to your aquarium water, following the packaging directions.
3. Recheck the dosing rate before each use and never exceed the recommended amount.

• 100ml volume, dosing guidance stated for approximately 500L of water per the product description
• Helps keep pH balance stable
• Binds heavy metals present in aquarium water
• Helps reduce algae growth by lowering light levels through natural water tint