Fish Flex (Cephalexin) 250mg is a highly trusted and effective fish antibiotic formulated to treat a wide range of bacterial infections in aquarium and ornamental fish. Made with pharmaceutical-grade Cephalexin Monohydrate, this broad-spectrum antibiotic provides powerful protection against fin rot, skin ulcers, tail rot, and gill infections.
Fish Flex Cephalexin works by inhibiting bacterial cell wall synthesis, effectively stopping the growth and spread of harmful bacteria. Its fast-dissolving formula ensures quick action, promoting faster recovery while maintaining a clean and balanced aquatic environment. Suitable for both freshwater and marine aquariums, Fish Flex is one of the most popular fish antibiotics among hobbyists and professionals alike.
Key Benefits
Broad-Spectrum Protection :
Targets a variety of Gram-positive and some Gram-negative bacteria responsible for common aquarium fish infections.
Fast-Acting and Effective :
Quickly dissolves in aquarium water to deliver rapid treatment and promote faster healing.
Safe and Aquarium-Friendly :
Designed specifically for ornamental fish, ensuring minimal impact on beneficial bacteria and overall water quality.
Trusted Fish Antibiotic :
Fish Cephalexin is one of the most reliable fish antibiotics available, providing consistent and proven results for aquatic bacterial infections.
Versatile Treatment :
Can be used for both internal and external infections; suitable for use in hospital tanks or mixed with food.
When to Use Fish Flex (Cephalexin)
Use Fish Flex fish antibiotics when your fish show signs of bacterial infection such as:
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Frayed or decaying fins and tails
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Open sores or ulcers
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Red streaks on fins or body
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Gill inflammation or labored breathing
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Unusual lethargy or lack of appetite
Always confirm the infection is bacterial before beginning treatment.
Directions for Use
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Dosage: Dissolve one capsule (250 mg) per 10 gallons of aquarium water.
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Frequency: Repeat every 24 hours.
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Duration: Continue treatment for 5–10 days depending on infection severity.
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Maintenance: Perform partial water changes daily and use activated carbon after treatment to remove any remaining medication.
Monitor fish closely during the treatment period to ensure proper recovery.
Active Ingredient
Cephalexin Monohydrate – 250 mg
A broad-spectrum, pharmaceutical-grade antibiotic that destroys harmful bacteria by disrupting their cell walls and stopping infection spread.
