Fritz Expel-F

Fritz Expel-F is a targeted antifungal for true fungal infections such as Saprolegnia and Ichthyophonus, the white, cottony growths that appear on fins, mouth, and body. One simple dose starts a 14-day course, in fresh or saltwater. Explore more fish medication.

Features

• Treats true fungal infections including Saprolegnia and Ichthyophonus hoferi
• Tackles white, patchy, cotton-like growths on body, mouth, or fins
• Works in both freshwater and saltwater
• Single-dose convenience with a 14-day treatment window
• Effective against certain other true fungal infections

Choose Your Size

• 10-count for smaller tanks
• 20-count for larger systems and better value

How to Use

• Mix one packet per 10 gallons (38 L) in a cup of water, then add to a high-flow area
• Only one dose is needed; the treatment period is 14 days
• Best used in a quarantine tank; remove carbon and ion-exchange resin
• May affect desirable macroalgae and can cause corals to retract temporarily

Specifications

Recommended Pairings

• Clear ich with Fritz FixIck
• Protect the slime coat with BacterShield
• Browse all medication

Frequently Asked Questions

What does it treat?
True fungal infections like Saprolegnia and Ichthyophonus.

How long is treatment?
One dose, with a 14-day treatment period.

Reef safe?
Use caution: it can affect macroalgae and make corals retract temporarily, so a quarantine tank is best.