Seachem Reef Kalkwasser 1kg – Pure Calcium Hydroxide for Reef Tanks

Seachem Reef Kalkwasser 1kg is an ultra-pure calcium hydroxide formulated to prepare high-quality limewater (kalkwasser) solutions for reef aquariums. Designed to maintain calcium at natural seawater levels, kalkwasser supports healthy coral growth while helping stabilise pH.

Kalkwasser maintains calcium directly and carbonate alkalinity indirectly, making it an excellent choice for top-off systems. Its exceptional purity and solubility ensure clean dosing without introducing impurities. Reef Kalkwasser also naturally increases pH without negatively impacting carbonate alkalinity when used correctly.

This 1kg pack is ideal for medium to large reef systems or long-term kalkwasser dosing setups.

Key Features:

• Ultra-pure calcium hydroxide
• Used to prepare kalkwasser (limewater) solutions
• Maintains natural seawater calcium levels
• Supports coral growth and skeletal formation
• Raises pH safely without affecting carbonate alkalinity
• Ideal for use in auto top-off systems
• High solubility and purity
• Suitable for reef and marine aquariums

Seachem Reef Kalkwasser 1kg delivers unmatched purity and performance for reef aquarists seeking stable calcium levels and healthy coral growth. Perfect for kalkwasser dosing and top-off systems, it provides a reliable and efficient method of calcium supplementation. Available now at Reef Freaks.