6 Best Red Slime Algae Removers

Fish & Reef Safe Red Slime Eliminating Products

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Our Top Picks
"AquaVision Aquatics Cyano Solution is a antibacterial agent which treats unsightly cyano bacteria in marine and reef aquariums."
"Removes disease causing red cyanobacteria (red slime) from live coral and removes red slime, black, blue-green and bubble producing algae."
"UltraLife Red Slime Remover removes red slime without harsh algaecides or antibiotics."
"Acts quickly, easy to measure and use powder and treats 400 gallons."
"Excital Cyano Stain Remover offers a safe and easy way to restore aquarium beauty."
"Ruby Reef Sliminator water treatment eliminates unsightly slime caused by cyanobacteria."

Best Antibacterial: Aqua Vision Aquatics Aqua Vision Aquatics Cyano Solution

AquaVision Aquatics Cyano Solution is a antibacterial agent which treats unsightly cyano bacteria in marine and reef aquariums. Reef tank safe, it may be used in both marine and coral reef aquariums. Instructions read: Dissolve 1 scoop (included) with 1 cup of aquarium water for use with every 10 gallons. 2 grams treats 400 gallons.

Best Phosphate-Free: Boyd Enterprises Chemi-Clean

Manufacturer: Boyd Enterprises
Features: Removes disease causing red cyanobacteria (red slime) from live coral; Removes red slime, black, blue-green and bubble producing algae; Oxidizes trapped organic sludge and sediment; Clarifies aquarium water to crystal clear; Promotes ideal enzyme balance; Contains no phosphates, algaecides or erythromycin succinate; Safe for fish, corals and other invertebrates, desirable macro algaes, and nitrifying bacteria; Fast acting, easy to measure and use powder; Does not discolor aquarium water; 2 gram size treats up to 300 gallons - 6 gram size treats up to 900 gallons.

Note: Recommended to provide additional aeration in the aquarium during treatment.

Best Fast-Acting: Ultralife Red Slime Stain Remover

UltraLife Red Slime Remover removes red slime without harsh algaecides or antibiotics. UltraLife Red Slime Stain Remover is a revolutionary product that contains natural cellular matter, select biological accelerators and special supplements proven effective in removing red slime from corals and invertebrates.

Manufacturer: UltraLife Reef Products

Features: Safe for fish, corals, invertebrates and other reef inhabitants; Fast acting, easy to measure and use powder; One bottle treats 250-300 gallons

Note: Causes skimmer overflow for days after treatment, so keep an eye on the skimmer collection cup levels to prevent overflow.

Best Large Quantity: Blue Life USA Cyano Rx Aquarium Treatment

Manufacturer: Blue Vet RX

Features: Does not discolor the water; Will not harm any fish, corals or other reef invertebrates; Acts quickly; Easy to measure and use powder; Treats 400 gallons.

Note: If overdosed, this product could have some effect on pH and oxygen levels.

Best Anti-Stain: EasyLife185 Excital

 Remove stains caused by cyanobacteria without using algaecides or antibiotics! Excital Cyano Stain Remover offers a safe and easy way to restore aquarium beauty. Revolutionary blend of vitamins and synthetic concentrates stimulate the growth of beneficial micro-organisms in light-sensitive places in the aquarium. Healthy bacteria growth displaces cyanobacteria to clear stains from corals, live rock, substrate and other aquarium surfaces. You'll see visible results within 10 days!

When dosing with your tank with Excital Cyano Stain Remover there is no need to turn off any of your aquarium equipment (protein skimmers, etc.) just remove any carbon in the system while using. No water changes are required afterwards because it's completely biodegradable. Safe to use with all marine fish, invertebrates and corals. Will not harm the beneficial nitrifying bacteria in your biofiltration system.

Best For Slime: Ruby Reef Sliminator

Reef-safe and erythromycin-free solution to restoring aquarium aesthetics. Ruby Reef Sliminator water treatment eliminates unsightly slime caused by cyanobacteria. It contains no erythromycin and will not affect aquarium biofiltration. Safe for all aquarium fish (including scaleless fish), plants, corals. and invertebrates.

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