Brightwell Aquatics Kalkwasser Powder for Reef Aquariums, 450g Kalk+2 Calcium & pH Support

Brightwell Aquatics Kalk+2 is a 450 g kalkwasser powder supplement for reef aquariums, supplying calcium, strontium and magnesium without chloride salts.

• 450 g powdered supplement — provides kalkwasser-based support for a reef aquarium.
• Calcium, strontium and magnesium in aragonite-matched ratios — supplies elements used in reef-building.
• No chloride salts or other conservative elements — avoids adding these elements with the supplement.
• Helps maintain pH and temporarily support alkalinity — contributes to stable aquarium conditions.
• Formulated by a marine scientist — made for reef keepers familiar with kalkwasser products.
• Made in the USA — produced in the United States.

Reef-building invertebrates rely on aragonite as skeletal material. Kalk+2 is made for reef keepers who want a kalkwasser-based way to supply key elements and support aquarium water conditions, including pH and temporary alkalinity. Its intended users are experienced hobbyists familiar with kalkwasser.

Which elements does Kalk+2 supply for reef-building?

Brightwell Aquatics Kalk+2 supplies calcium, strontium and magnesium in the same ratios found in aragonite. These elements support the formation of aragonite, the skeletal material of reef-building invertebrates.

• Made for reef aquariums containing corals, clams or calcareous algae.

How does Kalk+2 support aquarium pH and alkalinity?

Brightwell Aquatics Kalk+2 helps maintain stable pH and temporarily supports alkalinity. These functions make it relevant to reef keepers managing water conditions alongside the aquarium’s supply of aragonite-forming elements.

• The alkalinity support is temporary.

How is Kalk+2 different from a traditional calcium supplement?

Brightwell Aquatics Kalk+2 is kalkwasser-based and contains no chloride salts or other conservative elements. This distinguishes its formulation from calcium supplements that add chloride salts.

• The formula is designed for reef aquarium use.

Who is Brightwell Aquatics Kalk+2 designed for?

Brightwell Aquatics Kalk+2 is intended for experienced reef aquarium hobbyists who are familiar with kalkwasser products. A marine scientist formulated the product, and it is made in the USA.

• Its purpose is to support the building blocks involved in coral formation.

Kalk+2 is suited to experienced reef keepers maintaining aquariums with reef-building invertebrates and seeking a kalkwasser-based source of calcium, strontium and magnesium. It is a 450 g powder made for reef aquarium use, with a formulation that also supports pH and temporary alkalinity management.