Little Shop of Coral
Aquaforest Kalk Media 5kg
Aquaforest Kalk Media 5kg
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KalkMedia
A high-quality calcium reactor media, specifically designed for marine aquariums.
KalkMedia is a premium-quality calcium reactor media, specifically designed for marine aquariums. With carefully selected granulation of 5-12 mm, KalkMedia ensures efficient calcium and carbonate delivery while preventing reactor clogging, guaranteeing long-lasting and stable equipment performance. This product supports the healthy growth of corals and other marine organisms by maintaining optimal calcium levels, water hardness, and alkalinity.
Ready-to-Use formula
KalkMedia is ready to use and contains not only calcium and carbonates but also essential trace elements necessary for maintaining a healthy aquarium environment.
What makes KalkMedia unique?
- Rich in Trace Elements – In addition to calcium and carbonates, KalkMedia provides vital microelements that promote coral health and growth.
- Water Parameter Stabilization – Regular use helps maintain optimal pH levels and water hardness, creating better conditions for marine organisms.
- 5-12 mm Granulation – Ensures smooth water flow and prevents reactor clogging, even under heavy system operation.
How to use:
- Rinse the media in RO water before use.
- Fill your calcium reactor with KalkMedia according to the reactor manufacturer’s instructions.
- Connect the calcium reactor and ensure all tubing is correctly installed and secured.
- Monitor CO₂ levels to ensure proper calcium dissolution and stable water chemistry.
- Maintain reactor pH between 6.2 and 6.5 for effective calcium and carbonate release.
Why choose Aquaforest KalkMedia?
KalkMedia has been developed for the most demanding marine aquarists. Thanks to carefully selected raw materials and precise granulation, it guarantees optimal performance in any type of calcium reactor. It is a reliable solution for ensuring the healthy and stable growth of corals and other marine organisms in your aquarium.
For aquarium use only. Keep out of reach of children.

Collapsible content
LIGHT
LOW: Place coral at the bottom of the tank. Depending on the type, coral may need to be placed off sand and therefore mounted on a ceramic disc of piece of rock.
MEDIUM: Place coral at mid-range of the tank. Best placed/glued on top of a rock scape at mid-range height.
HIGH: Place coral from mid range to just below water level. SPS coral are shallow growing so they require and are able to tolerate intense light.
FLOW
LOW: Most soft coral do well with a small, gentle pulse. There are certain corals that can even be placed in areas of indirect flow, meaning places aside a rock structure or set into a entrance to a cave style space.
MEDIUM: Many LPS types of coral prefer medium pulse current. Most Euphyllia or corals that have more tissue structure connected to their skeleton, don’t like to be in a high flow area like the direct flow of the wave pump.
HIGH: Similar to high light, SPS enjoy being in some heavy current. Most LPS and SPS that branch encrust or plate prefer high flow that simulates the top water waves.
SKILL
ENTRY: While some may say beginner level, "Entry" is a good term to be used when starting out in the world of corals and marine life. Prior to adding livestock, you want to ensure that your reef has the proper parameters including zero levels of ammonia and nitrite. Seeing traces of nitrate in your waters is a good sign - just keep them at a lower level of 2ppm to 10ppm. Maintaining correct temperature and salinity are a huge factor to stable parameters. Starting to monitor your PH, alkalinity, calcium and magnesium is a great habit to get into to keep a successful reef.
While some soft coral don’t require too much light, having a proper reef light that puts out the proper pars is very important. You'll also want to have a good amount of flow and protected rock areas, as placing corals in their happy spot is ideal for success.
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