Seachem Reef Calcium 500 mL
Seachem Reef Calcium 500 mL
Seachem Reef Calcium is a highly concentrated calcium supplement designed to maintain optimal calcium levels in reef aquariums. Calcium is a critical building block for SPS and LPS coral skeletal growth, as well as coralline algae development. In actively growing reef systems, calcium is rapidly depleted and must be replenished regularly.
Reef Calcium provides calcium in a bioavailable chloride form that allows for fast absorption without affecting alkalinity when used as directed.
The 500 mL bottle is ideal for medium to large reef aquariums and consistent dosing routines.
Highly Concentrated Calcium Supplement Supports Coral & Coralline Growth
Key Benefits
🧪 Raises & Maintains Calcium Levels
🪸 Supports Coral Skeleton & Coralline Algae Growth
⚖️ Does Not Affect Alkalinity (KH)
Designed for Reef & Marine Aquariums
🐠 Safe for Fish, Corals & Invertebrates
🎯 Highly Concentrated for Precise Dosing
⚙️ Product Details
- Brand: Seachem
- Product Name: Reef Calcium
- Size: 500 mL
- Supplement Type: Calcium (Ca²⁺)
- Aquarium Type: Saltwater / Reef
- Best For:
- SPS corals
- LPS corals
- Coralline algae
- Mixed reef systems
💡 Dosing Guidelines (Summary)
- 5 mL per 20 gallons raises calcium by approximately 10 ppm
- Target calcium range: 380450 ppm
- Dose daily or as needed based on testing
Always test calcium levels and dose gradually.
❓ FAQ Seachem Reef Calcium
Q: Does Reef Calcium affect alkalinity?
A: NoReef Calcium raises calcium without impacting KH.
Q: Is this safe for SPS-dominant tanks?
A: Yescommonly used in SPS, LPS, and mixed reef systems.
Q: Can calcium be overdosed?
A: Yesalways test and avoid rapid increases.
Q: Should this be used with alkalinity supplements?
A: Yesbalanced calcium and alkalinity are essential for coral growth.
Q: Can this replace two-part dosing?
A: It can be used alone or alongside alkalinity supplements, depending on system needs.
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