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Seachem
Seachem Reef Calcium

Seachem Reef Calcium

5· 2 ratings

Last price we saw

$11.33at SaltwaterAquarium.com, last seen Oct 31

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Quick answers

What do buyers say about the Seachem Reef Calcium?
Rated 5 out of 5 from 2 ratings.
Where can I buy the Seachem Reef Calcium?
5 stores we checked sell it, including Tropical Treasures Wyo LLC, Amazon, SaltwaterAquarium.com, The Hidden Reef, Walmart.

Seachem Reef Calcium prices at every store

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  • Tropical Treasures Wyo LLCCheck price at Tropical Treasures Wyo LLC
  • AmazonCheck price at Amazon
  • SaltwaterAquarium.comCheck price at SaltwaterAquarium.com
  • The Hidden ReefCheck price at The Hidden Reef
  • WalmartCheck price at Walmart

Seachem Reef Calcium price history

Lowest price we've seen: $11.33 on Oct 31 at SaltwaterAquarium.com. Tracked across 4 stores since Oct 31.

From Tropical Treasures Wyo LLC

  • Contains 50,000 mg/L of bioavailable calcium as a polygluconate complex
  • Supplies calcium plus an easily metabolized organic component for calcifying reef organisms
  • Designed to maintain calcium after the aquarium has reached the appropriate range
  • Polygluconate complexation helps reduce calcium precipitation and unnecessary alkalinity loss
  • Does not alter pH and does not intentionally add nitrate or phosphate
  • May be paired with Reef Complete or Reef Advantage Calcium
Sizes
500 mL
Materials
Calcium gluconate in a polygluconate complex; 50,000 mg/L calcium
Fit
Saltwater and reef aquariums; best for SPS, LPS, mixed reef, soft-coral systems with calcifying organisms, and marine aquariums with clams
Sizing
Standard dose of 5 mL per 20 US gallons raises calcium by about 3 mg/L; calculate dosing from actual water volume after accounting for rock, sand and equipment;
Care
Shake before use. Add 5 mL per 20 US gallons twice weekly to an area with good water movement; do not exceed 15 mL per 20 gallons in one day; avoid pouring dire
Shipping
Shipping calculated at checkout; live fish are no longer shipped and livestock is in-store pickup only
In the box
500 mL bottle of Seachem Reef Calcium

About the Seachem Reef Calcium

Seachem Reef Calcium 500 mL is a concentrated organic calcium supplement formulated to maintain calcium availability and support coral growth in saltwater reef aquariums. It contains 50,000 mg/L of bioavailable calcium supplied as a polygluconate complex.

Unlike traditional ionic calcium supplements based on calcium chloride, Reef Calcium uses an uncharged organic calcium complex. This allows corals to obtain multiple calcium atoms along with an easily metabolized source of energy while using less energy than may be required for the uptake of charged ionic calcium.

Reef Calcium is intended primarily for maintaining calcium that is already within an appropriate range. It may be used by itself or alongside an ionic calcium supplement as part of a complete reef aquarium calcium and alkalinity routine.

Key Features

Concentrated Organic Calcium: Contains 50,000 mg/L of bioavailable polygluconate-complexed calcium

Supports Coral Growth: Supplies calcium and an easily metabolized organic component for calcifying reef organisms

Designed for Calcium Maintenance: Helps maintain calcium after the aquarium has reached the appropriate range

Minimal Alkalinity Depletion: Polygluconate complexation helps reduce calcium precipitation and unnecessary alkalinity loss

Does Not Alter pH: Maintains calcium without functioning as a pH-adjusting supplement

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No Nitrogen or Phosphorus: Does not intentionally add nitrate or phosphate to the aquarium

Compatible with Ionic Calcium: May be paired with Reef Complete or Reef Advantage Calcium

Large 500 mL Bottle: Suitable for medium and larger reef aquariums or ongoing supplementation routines

Product Information

Brand: Seachem

Product: Reef Calcium

Size: 500 mL

Equivalent Size: Approximately 17 fl oz

Product Type: Organic reef aquarium calcium supplement

Calcium Source: Calcium gluconate in a polygluconate complex

Calcium Concentration: 50,000 mg/L

Aquarium Type: Saltwater and reef aquariums

Standard Dosage: 5 mL per 20 US gallons twice weekly

Calcium Increase per Standard Dose: Approximately 3 mg/L

Recommended Calcium Range: Approximately 380–420 mg/L

Specifications

Calcium concentration
50,000 mg/LSource
Form
Liquid organic calcium sourceSource
Complexation
polygluconate complexed calciumSource
pH effect
without altering pHSource
Available sizes
100 mL, 250 mL, 500 mL, 4 LSource
Calcium increase per capful
about 3 mg/LSource
Maximum daily calcium increase
3 mg/L in a single daySource
Target calcium level
380 mg/L total calciumSource
Physical Form
Liquid
Pet Safety
Safe for fish
Treatment Type
Water Quality
Product Type
Water Conditioner
Water Treatment Type
Conditioner
Subtype
Calcium source
Water Volume Treated
2000 gal
Intended Use
Maintain calcium levels
Animal Type
Coral
Water Environment
Reef
Target Issue
Nutrient Deficiency (Calcium)
Age Range
Adult
Addresses Disease
No
Capacity
250 ml
Treatment Volume
2000 gal
Container Type
Bottle
F
Fresh & Saltwater Aquarium Conditioner (500 ml)
Fresh & Saltwater Aquarium Conditioner (500 ml)