Reef Complete is a concentrated blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH

Seachem

Item #: 9960753

Reef Complete, 2 L / 67.6 fl. oz.

Item #: 9960753

BHD 22

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Reef Complete is a concentrated blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH

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What Stands Out

Coral Nutrition

Enriched with essential vitamins and trace elements, Reef Complete enhances coral growth and health, addressing the specific nutrient needs of reef aquariums and ensuring vibrant marine ecosystems.

Easy Application

Designed for effortless use, Reef Complete can be easily added to your aquarium without complicated dosing systems, making it ideal for both novice and experienced reef keepers.

High-Quality Formula

Crafted with top-tier ingredients, this supplement promotes optimal water quality and coral vitality, setting it apart from competitors by providing superior results for healthier, thriving marine life.

Product Details

Concentrated blend of ionic calcium for saltwater aquariums
Designed to restore and maintain calcium levels without affecting pH
Essential for coral growth and prevents rapid decline in growth
Includes magnesium and strontium to maintain proper utilization ratios
More concentrated than other liquid products on the market
Backed by over three decades of sound science and expertise from chemists and biologists at Seachem

Brand Name	Seachem
Manufacturer	Seachem Laboratories, Inc.
UPC	000116033800
Global Trade Identification Number	00000116033800
Model Number	338
Manufacturer Part Number	338
Unit Count	67.6 Fluid Ounces
Item Type Name	Aquarium Conditioner
Liquid Volume	2 Liters
Item Weight	5 Pounds (2.27 kg)
Item Form	Liquid
Pet Type	Fish
Target Species	Fish
Allergen Information	Yam Free
Product Dimensions	3.25 x 5.75 x 9.5 inches (8.3 x 14.6 x 24.1 cm); 5.01 Pounds (2.27 kg)
Brand	Seachem

Who Should Buy?

Reef Enthusiasts
Excellent for aquarists wanting to enhance coral health and improve overall reef tank conditions.
Aquarium Beginners
Suitable for novice users needing a straightforward solution to maintain calcium levels in their tanks.
Coral Lovers
Ideal for users focused on promoting coral growth and vitality in saltwater aquariums.

Freshwater Users
Not intended for freshwater aquariums, as it could disrupt nutrient balance in non-saltwater environments.

Product Description

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Product Buying Guide

Seachem Reef Complete is a concentrated blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH. With a focus on coral growth and the absence of harmful nitrogenous waste, this calcium supplement from Seachem offers an effective solution for saltwater aquariums. Continue Reading

Customer Questions & Answers

Question: What does Reef Complete do?

Answer: Reef Complete is a concentrated blend of ionic calcium designed to restore and maintain calcium to levels found in natural seawater without affecting pH.
Question: What are the benefits of using Reef Complete?

Answer: Reef Complete includes essential elements like magnesium and strontium in proportionate amounts that are required for coral growth. It also does not contain any harmful nitrogenous waste.
Question: What sets Seachem apart from other pet care companies?

Answer: Seachem is owned and operated by hobbyists who maintain aquariums at home and at the office. They approach old problems in a new way and have a philosophy that the knowledgeable hobbyist makes the best customer.
Question: What is the color of the liquid?

Answer: The liquid is light blue, not dark brown.
Question: What is the difference between Seachem Reef Advantage Calcium and Seachem Reef Complete?

Answer: Reef Advantage Calcium is a powder, while Reef Complete is a liquid.
Question: Is there a way to dose this?

Answer: Yes, you can use a pipette. Follow the measurements on the bottle, as they vary based on the product.

Seachem Aquarium Water Treatments 338 Editorial Review

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Customer Reviews & Ratings

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Mohammad

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“Excellent quality and very fast delivery, I really appreciate your service, when you work good I will appreciate that, I am very satisfied, thank you”

13 June 2026 · via Trustpilot

Maryam

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“The order arrived fast and in perfect condition”

2 June 2026 · via Trustpilot

Mohd

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“Firstly the team who are very positive in response to any correction if something wrong. Secondly the quality and selection is exactly on what I ordered and which is perfect. Finally the time of delivery is very sufficient which made me comfortable. Overall is excellent.”

26 Feb 2026 · via Trustpilot

Khaled

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“Good quality of product, delivered in 2 weeks. I thought it would take more time.”

21 Feb 2026 · via Trustpilot

trusttaker

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“Everything was fine. You can order from multiple stores or countries—just be patient with the shipping. Given their business model, this was my first order from them. Thank you, Ubuy.”

20 Feb 2026 · via Trustpilot

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Features & Benefits

Contains 160,000 ppm calcium
Includes magnesium and strontium in proportionate amounts
More concentrated than any other liquid product
Essential to all coral growth
Contains no ammonia or other harmful nitrogenous waste
Proven in science and performance

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Reef Complete, 2 L / 67.6 fl. oz.