I have an activated carbon reactor, will the reactor remove this stuff?

I don't know the answer but I shut my off for a few hours.

What distinguishes this from their regular calcium additive?

It's more than just calcium. It has all the elements of saltwater mixes. You use Reef Plus with this, and your saltwater tank gets the added vitamins and amino acids it needs to be healthy.

Seachem reef calcium. will it help strengthen the shell of my freshwater turtle? i have a reeve’s turtle/chinese pond turtle.

Made for saltwater! Need better foods for your turtle. Pond turtles don't need calcium supplements because it's usually in the water if you do water replacements!

My calcium (159) and magnesium (870) levels are low in my nano 13.5g saltwater tank. Will this boost both or do I also need a magnesium additive?

Water changes work better than anything in these smaller tanks. Is this a hard coral tank? I use Seachem Reef Complete and Reef Plus together. If its a coral tank and not a fish tank, then make sure your using a reef salt mix with those extra additives. You can also add Reef Rubble pieces to keep your levels up in between water changes. Smaller tanks need more water changes because things change quicker with less space.

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Seachem Reef Complete 500ml

Product ID: 1627386

Details

Brand
Seachem
Item Form
Liquid Ionic
Item Weight
0.6 Kilograms
Liquid Volume
500
Unit Count
1 Count

🌊Balanced magnesium & strontium for natural seawater harmony

💧160,000 mg/L ionic calcium - market's highest concentration

⚖️100% soluble formula - no shaking, no residue

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NZ$39

Duties & taxes included

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Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Keep your reef thriving with the purest calcium boost on the market!

P H STABLE FORMULA - Supports coral health without altering your tank’s delicate pH balance.
BALANCED REEF CHEMISTRY - Includes magnesium and strontium in perfect ratios to maintain natural seawater conditions.
TRUSTED BY REEF ENTHUSIASTS - Highly rated with 4.7 stars from 700+ reviews—perfect for both new and seasoned reef keepers.
CRYSTAL CLEAR READY TO USE - 100% soluble liquid formula means no milky residue or shaking—just pure performance.
ULTRA CONCENTRATED IONIC CALCIUM - Boost coral growth with the market’s strongest 160,000 mg/L calcium source.

Seachem Reef Complete 500ml is a premium liquid ionic calcium supplement delivering an unmatched 160,000 mg/L concentration. Designed to maintain natural seawater calcium levels without affecting pH, it also provides balanced magnesium and strontium to support optimal coral growth and health. Its 100% soluble, clear formula ensures easy dosing with no residue, making it a top choice for reef aquarists seeking reliable, effective calcium supplementation.

Specifications

ASIN	B000256976
ASIN	B000256976
Allergen Information	Allergen-Free
Best Sellers Rank	#38,765 in Pet Supplies ( See Top 100 in Pet Supplies ) #356 in Aquarium Water Treatments
Brand Name	Seachem
Customer Reviews	4.7 4.7 out of 5 stars (743)
Date First Available	June 15, 2004
Department	Unisex-Adult
Global Trade Identification Number	00000116033305
Included Components	Seachem Reef Complete 500ml
Is Discontinued By Manufacturer	No
Item Form	Liquid,Ionic
Item Type Name	Seachem Reef Complete 500ml
Item Weight	0.6 Kilograms
Item model number	333
Liquid Volume	500 Milliliters
Manufacturer	Seachem Laboratories, Inc.
Manufacturer	Seachem Laboratories, Inc.
Manufacturer Part Number	333
Model Number	333
Pet Type	Fish
Product Dimensions	6.5 x 2.5 x 2.3 inches; 1.32 Pounds
Target Species	Fish
UPC	015568976964 000116033305
Unit Count	1 Count
Warranty Description	Warranty

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