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Seachem

Seachem Reef Calcium 500ml

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$17.32 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Jan 5
Order within 23 hours and 37 minutes
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Size: 500 mL


Color: clear


Features

  • Liquid organic calcium source
  • Maintains calcium and accelerates coral growth
  • Concentrated (50,000 mg/L)

Description

Seachem Reef Calcium 500ml

Brand: Seachem


Liquid Volume: 500 Milliliters


Item Weight: 0.6 Kilograms


Item Form: Liquid


Manufacturer: Seachem Laboratories, Inc.


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 0.15 x 1.5 x 0.15 inches; 1.32 Pounds


Item model number ‏ : ‎ 116035309


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ June 15, 2004


Item Weight: 1.32 pounds


Department: Unisex-Adult


Manufacturer: Seachem Laboratories, Inc.


Item model number: 116035309


Date First Available: June 15, 2004


Item Package Dimensions L x W x H: 7.6 x 2.36 x 2.28 inches


Item Dimensions LxWxH: 0.15 x 1.5 x 0.15 inches


Item Weight: 0.6 Kilograms


Brand Name: Seachem


Target Audience Keyword: Fish


Directions: Keep out of reach of children, Avoid contact with eyes, skin, and clothing. In case of contact, rinse immediately with plenty of water and seek medical advice if irritation persists.


Warranty Description: Warranty


Model Name: Seachem Reef Calcium 500ml


Color: clear


Size: 500 mL


Material: Plastic


Age Range Description: All Life Stages


Number of Items: 1


Included Components: Seachem Reef Calcium 500ml


Specific Uses for Product: Active


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jan 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Good purchase
Size: 250 mL Color: clear
Good product no problems
Reviewed in the United States on September 21, 2025 by Rich
    • PERFECT for my snail tank water changes!
Size: 250 mL Color: clear
Review Image by Bart Bart
I was running into issues in my snail tank during water changes. My tap water is very very soft and acidic, obviously not good for snails. I had them in a tub filled with aragonite and wonder shells but the time after a large water change I was noticing shell erosion since the water still took some time to harden up despite all the hardening products in the water. I started adding this calcium on top of my normal GH/KH+ and that seems to have done the trick! New shell growth looks perfectly healthy! I put it in these 2ml pump bottles and now water changes are an absolute breeze. I'd recommend the same if you have a lot of water you change regularly. ... show more
Reviewed in the United States on January 15, 2025 by Bart Bart
    • High quality Calcium supplement
Size: 250 mL Color: clear
High quality Calcium supplement - no adverse effects from fish nor snails.
Reviewed in the United States on July 24, 2025 by Michael Silverman
    • Works well. Good product
Size: 250 mL Color: clear
It's Amazon. Good product good price. Comes to your door
Reviewed in the United States on April 10, 2024 by Jeff G
    • Great for maintaining high calcium levels for freshwater snails
Size: 500 mL Color: clear
My water is very hard but for some reason has very little actual bioavailable calcium. My mystery snails have really be struggling and I was looking for an effective way to directly add calcium to the water column quickly. I decided to try this out alongside a calcium water test kit, and used it to get my calcium levels up to 60-70ppm/L which is ideal for mystery snails and other snails. This is formulated to marine aquariums but it can be used in freshwater with some caution and a calcium test kit. A little goes a long way. Really helped my snails! ... show more
Reviewed in the United States on February 14, 2024 by jennifer
    • Snail Health
Size: 500 mL Color: clear
Good for fresh water if you have snails. Just follow the directions on the bottle
Reviewed in the United States on April 23, 2025 by Reyna Bautista
    • Coral love this stuff
Size: 500 mL Color: clear
The best
Reviewed in the United States on April 19, 2025 by Brian
    • Seachem Reef Calcium 500ml
Size: 500 mL Color: clear
Reef Calcium is good quality, but very expensive in the scheme of things. I switched to using the Bulk Reef Supply Bulk Calcium Chloride that I mix myself and that is much more affordable and seems to be just as good at raising my calcium.
Reviewed in the United States on December 25, 2014 by Bryan

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