Stop shaking bottles — the Bubble Magus KA100 Kalkwasser Stirrer does it for you. It automatically mixes kalkwasser (calcium hydroxide) as fresh water slowly flows in and drains by gravity into your reef tank, giving you a consistent, fully saturated solution to maintain stable calcium and alkalinity.

How it works:

• Automated mixing: Motor continuously stirs kalkwasser for optimal saturation.

• Gravity-fed: Drains by gravity for safe, steady operation — no pressure buildup.

• Dosing-ready: Needs an external timer + dosing pump to add water.

• Consistent solution: Reliable way to keep water parameters stable.

Key Features:

• Models: KA100 (up to 150 gallons), KA150 (larger tanks).

• Construction: Durable acrylic, space-efficient design.

• Dimensions (KA100): 6" × 6" footprint, 4" body diameter, 19" height.

Important Considerations:

• Never pressurize — must drain by gravity.

• Motor can be noisy occasionally.

• Research proper kalkwasser dosing; instructions may not include amounts.

⚠️ Cautions

• Use only RO/DI water

• Requires timer + dosing pump

• Check for buildup or clogs regularly