Fauna Marin RED X 500 ml - Reef Safe Treatment for Cyanobacteria, Mild Dinoflagellates and Nuisance Algae

Every reef aquarium goes through changes. Sometimes that means nuisance algae, cyanobacteria, or unwanted coverings begin appearing on your sand bed, rocks, and corals.

Fauna Marin RED X was developed to gently support the natural biological balance of your reef aquarium while helping combat cyanobacteria, mild dinoflagellate outbreaks, gold algae, and diatoms. When used as directed, RED X is reef safe for fish, corals, and invertebrates.

Is RED X Right for Your Aquarium?

You may benefit from RED X if you're experiencing:

• Green or red cyanobacteria

• Mild dinoflagellate outbreaks

• Gold algae growth

• Diatoms

• Brown or red slime-like coverings

• Recurring nuisance algae issues in established reef aquariums

Why Choose RED X?

• Reef safe when used as directed

• Does not contain antibiotics or prescription medications

• Supports the aquarium's natural biological processes

• Effective against multiple nuisance algae and bacterial coverings

• Suitable for SPS, LPS, and mixed reef aquariums

• Gentle on fish, corals, and invertebrates

• Trusted premium formula from Fauna Marin

Recommended Use

• Dose 10 ml per 100 liters (26 gallons) daily for 6 days.

• After day 6, stop dosing and allow an additional 5 days for treatment to complete.

• Total treatment time is 11 days.

• During treatment, do not perform water changes or use activated carbon, phosphate removers, UV sterilizers, ozone, or adsorbing media.

• After treatment, normal aquarium maintenance may be resumed.

Always follow the manufacturer's instructions before use.

Specifications

• Size: 500 ml

• Aquarium Type: Saltwater Reef Aquariums

• Suitable For: SPS, LPS and Mixed Reef Systems

• Treatment Type: Reef Safe Biological Treatment

• Manufacturer: Fauna Marin

Reef Keeping Tip

Not all nuisance algae problems are the same. Proper identification is important before beginning treatment. Maintaining stable nutrients, good water movement, and regular water testing can help prevent many common reef aquarium issues.

Pairs Well With

• Phosphate Test Kits

• ICP Water Analysis Tests

• Fauna Marin ReBiotic

• Reef Aquarium Supplements

• Activated Carbon (after treatment)

• Water Testing Supplies

Why Buy From Infinity and Beyond Aquatics?

We're hobbyists first. We carefully select premium aquarium products while providing educational resources to help our customers succeed.

• Family owned and operated

• Premium reef aquarium products

• Responsive customer support

• Secure checkout

• Fast order processing

• Free standard shipping on qualifying orders over $100.

Shipping Information

Please allow up to 3 business days for order processing before your order ships. Business days do not include weekends.

Shipping times and delivery speeds may vary depending on the warehouse location fulfilling your order and your delivery address. Orders containing multiple items may arrive in separate packages.

Once your order ships, tracking information will be sent to the email address provided at checkout.

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