Fritz Slime Out

Fritz Slime Out is a fast, targeted treatment that clears the stains left by cyanobacteria outbreaks, the slimy blue-green, black, red, and bubble films that coat rock, sand, and glass. It works in both freshwater and saltwater and is safe with fish, plants, corals, and invertebrates, and it will not harm your biological filter. Explore more water care and treatments.

Features

• Clears cyanobacteria stains, usually within about 48 hours
• Effective on blue-green, black, red, and bubble cyano strains
• Safe for community fish, plants, corals, and invertebrates
• Will not disrupt beneficial nitrifying bacteria or the biofilter
• Works in both freshwater and saltwater

Choose Your Size

• 10-count packets for smaller tanks or spot treatments
• 20-count packets for larger tanks and better value

How to Use

• Add one packet per 25 gallons (94.5 L)
• Keep good water flow or aeration going during treatment
• Remove carbon and ion-exchange resin while treating
• Perform a 25% water change after 48 hours and repeat as needed
• Adjust your protein skimmer if foaming becomes a concern

Specifications

Recommended Pairings

• Keep water pristine with FritzZyme Turbo Clean
• Support the biofilter with FritzZyme Trace
• Browse all water care

Frequently Asked Questions

Will it hurt my fish or corals?
No. Used as directed it is safe for fish, plants, corals, and invertebrates in fresh or saltwater.

Does it kill my beneficial bacteria?
No, it does not inhibit nitrifying bacteria or affect the biofilter.

How fast does it work?
Most cyanobacteria stains clear within about 48 hours. Repeat if needed.