API Marine AlgaeFix 16oz – Saltwater & Reef Aquarium Algae Control

About This Product

The API Marine AlgaeFix 16oz is a powerful, easy-to-use liquid algae control treatment specifically formulated for saltwater and reef aquariums. Designed to effectively control unwanted green algae, red slime, and brown algae, this concentrated treatment helps maintain a cleaner, clearer, and more attractive marine aquarium environment.

Unwanted algae growth is a common problem in marine aquariums, often caused by excess nutrients, heavy feeding, prolonged lighting periods, and accumulated organic waste. These conditions can encourage algae to spread across aquarium glass, rockwork, decorations, and other surfaces, making routine maintenance more difficult.

API Marine AlgaeFix works by controlling susceptible algae populations, helping aquarium owners address existing algae problems and manage recurring growth. Its specialized marine formula is designed for established saltwater aquariums containing fish, corals, and other marine invertebrates.

According to API, Marine AlgaeFix is safe for marine fish, hard and soft corals, shrimp, snails, clams, anemones, and other compatible marine invertebrates when used exactly as directed. The formula controls unwanted algae without discoloring aquarium water or causing foaming.

The convenient liquid treatment is easy to measure and administer. During active algae outbreaks, the recommended dosage is repeated every three days until algae growth is controlled. Once the aquarium is clear, weekly maintenance dosing helps reduce future algae accumulation and minimize cleaning requirements.

Each 16oz (473ml) bottle treats up to approximately 4,800 US gallons of saltwater at the standard dosage, making Marine AlgaeFix an economical solution for both small and large marine aquarium systems.

Whether you’re maintaining a colorful mixed reef, an SPS or LPS coral aquarium, or a saltwater fish-only display, API Marine AlgaeFix provides effective algae management to help keep your aquarium looking its best.

Features:

• Specially formulated for marine aquariums controls unwanted algae growth in saltwater and reef systems.
• Effective green algae control targets susceptible species, including Cladophora.
• Controls red slime growth including susceptible Oscillatoria and Spirulina-type cyanobacteria.
• Helps manage brown algae including Cyclotella and other susceptible algae.
• Fast-acting formula helps address existing algae problems when used according to manufacturer directions.
• Manufacturer-rated reef-safe treatment formulated for aquariums containing marine fish, corals, and invertebrates.
• Compatible with hard and soft corals when used at the recommended dosage.
• Suitable for many marine invertebrates including shrimp, snails, clams, anemones, and feather dusters according to the product label.
• Helps maintain cleaner aquarium glass by controlling unwanted algae accumulation.
• Reduces algae growth on rockwork and decorations for a more attractive marine display.
• Does not discolor aquarium water when used according to directions.
• Non-foaming formulation helps maintain aquarium clarity during treatment.
• Simple liquid dosing provides convenient treatment based on aquarium water volume.
• Repeat treatment every three days until unwanted algae growth is controlled.
• Weekly maintenance dosing helps manage recurring algae growth.
• Concentrated 16oz formula treats up to approximately 4,800 US gallons at the standard dosage.
• EPA-registered algae control treatment formulated for labeled marine aquarium applications.

Specifications:

• Brand: API (Aquarium Pharmaceuticals)
• Product name: Marine AlgaeFix
• Product type: Marine aquarium algae control treatment
• Product size: 16 fl oz (473ml)
• Form: Liquid
• Primary function: Control of unwanted saltwater aquarium algae
• Target organisms: Green algae, red slime, and brown algae
• Active ingredient: Polyoxyethylene(dimethylimino)ethylene (dimethylimino)ethylene dichloride
• Active ingredient concentration: 4.50%
• Other ingredients: 95.50%
• Standard dosage: 1ml per 10 US gallons (38 liters)
• Alternative dosage: 5ml per 50 US gallons (190 liters)
• Initial treatment frequency: Every 3 days until algae is controlled
• Maintenance frequency: Once weekly
• Maximum treatment capacity: Approximately 4,800 US gallons per 16oz bottle at standard dosage
• Aquarium compatibility: Established saltwater and marine reef aquariums
• Coral compatibility: Hard and soft corals when used as directed
• Marine invertebrate compatibility: Manufacturer-labeled for compatible shrimp, snails, clams, anemones, and other marine invertebrates
• Freshwater application: Use separately labeled freshwater API AlgaeFix
• Water discoloration: Not expected when used as directed
• Foaming: Not expected when used as directed
• Recommended application: Marine algae treatment, reef aquarium algae management, and ongoing algae growth control

Dosage Instructions:

Standard Treatment

Use 1ml of API Marine AlgaeFix for every 10 US gallons of aquarium water.

Aquarium Volume	Recommended Dosage
10 gallons	1ml
20 gallons	2ml
30 gallons	3ml
50 gallons	5ml
75 gallons	7.5ml
100 gallons	10ml
150 gallons	15ml
200 gallons	20ml
300 gallons	30ml
500 gallons	50ml

Treatment Procedure:

1. Determine aquarium water volume: Calculate actual aquarium water volume, accounting for displacement by rockwork, substrate, and equipment.
2. Prepare the aquarium: Clean accessible algae from aquarium glass and decorations before treatment.
3. Measure the proper dosage: Use the supplied dosing cap or an accurate measuring device to measure 1ml per 10 gallons.
4. Add the treatment: Administer the measured amount according to the product label.
5. Repeat every three days: Continue dosing at three-day intervals until algae growth is controlled.
6. Remove dead algae: Siphon or scrape away dying algae to prevent excessive organic waste buildup.
7. Begin weekly maintenance: Once algae is controlled, administer the standard dosage once weekly to help manage recurring growth.

Maintenance Recommendations:

For long-term results, combine API Marine AlgaeFix with proper aquarium maintenance and water quality management.

• Maintain appropriate nitrate and phosphate levels for your particular reef system.
• Avoid overfeeding and remove uneaten food.
• Maintain efficient mechanical and biological filtration.
• Use an appropriate aquarium lighting schedule.
• Remove dead and dying algae during treatment.
• Maintain adequate water circulation and oxygen exchange.
• Perform regular water testing and routine water changes.

Important Product Information:

API Marine AlgaeFix is intended for established saltwater and reef aquariums at least four weeks old.

Follow the product label carefully and never exceed the recommended dosage or treatment frequency.

Although API identifies Marine AlgaeFix as compatible with marine fish, corals, and invertebrates when used as directed, individual organisms may vary in sensitivity. Monitor livestock closely throughout treatment.

Maintain sufficient aeration, particularly during significant algae die-off, because decomposing algae can reduce dissolved oxygen levels.

Marine AlgaeFix helps control susceptible algae but does not eliminate the underlying causes of excess nutrients or poor aquarium maintenance.

Safety Warning: Harmful if swallowed or absorbed through skin. Causes moderate eye irritation. Avoid contact with eyes, skin, and clothing. Wash thoroughly after handling and keep out of reach of children and pets.

Recommended application: A concentrated algae control treatment ideal for established saltwater and reef aquariums experiencing unwanted green algae, red slime, or brown algae growth. Helps maintain a cleaner marine environment and reduces recurring algae maintenance when used according to manufacturer instructions.