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 Liquid ionic Calcium Source, 500 ml

Seachem Reef Complete Liquid ionic Calcium Source, 500 ml

Product ID: 263417475

Details

Brand
Seachem
Item form
Liquid
Item weight
0.6 Kilograms
Liquid volume
500
Manufacturer
Seachem

⚡100% soluble for instant bioavailability

💧160,000 mg/L ionic calcium concentration

🧪Liquid form for precise dosing

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Description

🌊 Elevate your reef game with liquid ionic power!

EFFORTLESS DOSING - Liquid form makes precise, mess-free additions perfect for busy reef keepers.
TRUSTED BY ENTHUSIASTS - Backed by 721 glowing reviews and a 4.7-star rating—join the reef elite.
CORAL OPTIMIZED SUPPORT - Specifically designed to enhance coral growth and skeletal strength in reef tanks.
INSTANT ABSORPTION FORMULA - 100% soluble liquid ensures your corals get nutrients the moment you add it.
ULTRA HIGH CALCIUM CONCENTRATION - Boost your reef’s vitality with 60% more ionic calcium than standard supplements.

Seachem Reef Complete is a premium 500 ml liquid ionic calcium supplement delivering 160,000 mg/L calcium—60% higher than typical formulas. Fully soluble for rapid uptake, it supports vibrant coral growth and reef health with easy, precise dosing. Ideal for professional reef keepers seeking reliable, high-performance water treatment.

Specifications

ASIN	B000256976
Allergen Information	Allergen-Free
Best Sellers Rank	#32,833 in Pet Supplies ( See Top 100 in Pet Supplies ) #268 in Fish Medication & Health Supplies
Brand	Seachem
Brand Name	Seachem
Customer Reviews	4.7 out of 5 stars 730 Reviews
Global Trade Identification Number	00000116033305
Included Components	water condiditoner
Item Form	Liquid
Item Type Name	water conditioner
Item Weight	0.6 Kilograms
Item form	Liquid
Item weight	0.6 Kilograms
Liquid Volume	500 Milliliters
Liquid volume	500 Milliliters
Manufacturer	Seachem
Manufacturer Part Number	333
Model Number	333
Pet Type	Fish
Target Species	Fish
UPC	015568976964 000116033305
Unit Count	1 Count
Unit count	1 Count

Reviews

J**N

Quick and easy to tank of corals

Good stuff to add to aquariums

6.09.2025

C**H

Easy to add for small reef tanks

Reef complete is an easy to add supplement for small reef tank to maintain calcium.

18.02.2024

H**N

This stuff works!

My corals are happy and it's stupid simple to use.

13.06.2022

B**L

Replenishes trace elements

Dislike the fact it replaces all elements as my aquarium is always high in calcium and magnesium.

17.04.2023

S**�

Brilliant

Does what it says on the bottle… highly recommend

5.06.2023

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