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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💧 Elevate your reef’s vitality with every drop!

EFFORTLESS DOSING - Liquid formula allows precise, mess-free application—perfect for busy reef keepers.
ALL LIFE STAGES SAFE - Formulated for all aquatic life stages, ensuring consistent water chemistry and vitality.
COMPACT CONVENIENT - 500 ml cranberry-colored bottle fits seamlessly into your reef maintenance routine.
INSTANT BIOAVAILABILITY - 100% soluble liquid ensures rapid absorption, supporting coral and invertebrate health without delay.
ULTRA HIGH CALCIUM CONCENTRATION - Delivers 60% more ionic calcium than standard supplements for thriving reef ecosystems.

Seachem Reef Complete is a premium 500 ml liquid ionic calcium supplement delivering 160,000 mg/L calcium—60% higher than typical products. Its 100% soluble formula guarantees immediate bioavailability, promoting optimal coral growth and aquarium health. Designed for all aquatic life stages, this allergen-free, easy-to-dose liquid is a must-have for professional reef enthusiasts aiming for vibrant, thriving ecosystems.

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₪230

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Pet Type	Fish
Product Dimensions	16.51 x 6.35 x 5.84 cm; 599 g
Item model number	333
Pet Life Stage	All Life Stages
Item Form	Liquid
Allergen Information	Allergen-Free
Color	cranberry
Size	500 ml (Pack of 1)
Volume	0.5 Liters
Number of Items	1
Quantity	1
Specific Uses	aquariums
batteries required	No
Batteries Included	No
Item Weight	599 g

Seachem Reef Complete Liquid ionic Calcium Source, 500 ml

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