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Aqua Flex Cephalexin 500mg – 100 Capsules
  • Aqua Flex Cephalexin 500mg – 100 Capsules
  • Aqua Flex Cephalexin 500mg – 100 Capsules
Aqua Flex (Cephalexin) 250mg – 100 Capsules

Aqua Flex (Cephalexin) 250mg – 100 Capsules

$59.99 $69.99

Aqua Flex (Cephalexin) 250mg – 100 Capsules

Aqua Flex 250mg is a pharmaceutical-grade cephalexin fish antibiotic widely trusted by aquarists for treating common bacterial infections in ornamental fish. Equivalent to Fish Flex, this formula is designed to fight fin rot, columnaris, ulcers, popeye, and systemic bacterial conditions. The 250mg strength offers flexibility for smaller aquariums and precise treatment dosing.

What Aqua Flex 250mg Treats

  • Fin Rot & Tail Rot – Stops progression and supports tissue regrowth
  • Columnaris (Cotton Wool Disease) – Acts quickly against gram-positive bacteria
  • Ulcers & Skin Lesions – Protects open wounds from further bacterial spread
  • Gill Infections – Reduces swelling and restores healthy respiration
  • Popeye Disease – Controls bacterial swelling and protects eye tissue

Why Choose Aqua Flex 250mg?

  • Equivalent to Fish Flex (Cephalexin)
  • USP-grade pharmaceutical quality
  • Lower-dose capsules for precise treatment and smaller aquariums
  • Effective against gram-positive bacterial infections
  • No veterinary prescription required
  • Fast USA shipping with tracking

Product Specifications

  • Active Ingredient: Cephalexin 250mg per capsule
  • Quantity: 100 Capsules per bottle
  • Form: Hard-shell capsules
  • Use: For ornamental aquarium fish only (freshwater & saltwater)

Directions for Use

Add one capsule (250mg) per 10 gallons of aquarium water. Dissolve capsule in a small amount of water before adding to the tank. Repeat every 24 hours for 5–10 days depending on severity. Perform a 25% water change before each re-dosing. Remove carbon and UV sterilizers during treatment.

Stop use if no improvement is observed after 5 days. Do not exceed 10 consecutive days of treatment.

Storage Instructions

Store at room temperature (59°F–86°F / 15°C–30°C), tightly closed, and away from moisture and sunlight.

Important Disclaimer

For aquarium use only. Not for human use, livestock, or food fish. Keep out of reach of children and pets. Use only as directed for ornamental fish.

Frequently Asked Questions

Is Aqua Flex the same as Fish Flex?

Yes. Aqua Flex is equivalent to Fish Flex, containing the same active ingredient (Cephalexin).

When should I choose the 250mg version?

This lower-dose version is ideal for smaller aquariums, mild infections, and cases where precise dosing is required.

Can Aqua Flex 250mg be used in saltwater tanks?

Yes. Aqua Flex is safe for both freshwater and marine ornamental fish.

Will Aqua Flex affect my biological filter?

Yes, antibiotics may impact beneficial bacteria. Monitor water parameters closely during treatment.

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