Collection: Fish Flex & Flex Forte (Cephalexin / Keflex)

Fish Flex and Fish Flex Forte - Cephalexin (Keflex) 250 mg and 500 mg

Fish Flex and Fish Flex Forte and  - fish flex pack - are made by Thomas Labs and are Pharmaceutical Grade Fish Antibiotics.  They come in cephalexin (keflex) 250 mg and cephalexin (keflex) 500 mg.  It can be purchased in 30, and 100 count bottles. Now also available is a bottle of Fish Flex (340 mg) of Pure Cephalexin Powder with a size of 50 grams.  Each bottle of Fish Flex and Fish Flex Forte is sealed for safety and has instructions for fish and aquarium use and the expiration date of the medicine.  

At Fishick  we get 1-2 new shipments of medicine in every week to guarantee that we have the latest expiration dates possible on our fish antibiotics, and as always, place your order before 2 and we'll ship it that day.

Fast, FREE Shipping! Order before 2 p.m. and it ships today

(see full shipping policy for details- orders placed before 4 p.m. Eastern Monday-Friday ship the same business day. If orders are placed on Saturdays/Sundays they will ship the next business day)

11 products
  • Fish Flex - Cephalexin/Keflex 250 mg Capsules (30 Count)
    Fish Flex - Cephalexin/Keflex 250 mg Capsules (30 Count)
    Regular price
    $29.95
    Sale price
    $29.95
    Regular price
    $49.95
    Unit price
    per 
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  • Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules (30 Count)
    Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules (30 Count)
    Regular price
    $39.95
    Sale price
    $39.95
    Regular price
    $59.95
    Unit price
    per 
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  • Fish Flex - Cephalexin/Keflex 250 mg Capsules (100 Count) - 3 Pack
    Fish Flex  250  mg fish antibiotics by thomas labs
    Regular price
    $94.95
    Sale price
    $94.95
    Regular price
    $99.95
    Unit price
    per 
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  • Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules (100 Count) - 3 Pack
    fish flex 500 mg fish antibiotics by thomas labs
    Regular price
    $219.95
    Sale price
    $219.95
    Regular price
    $260.00
    Unit price
    per 
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  • Fish Flex - Cephalexin/Keflex 250 mg Capsules (100 Count)
    Fish Flex  250  mg fish antibiotics by thomas labs
    Regular price
    $39.95
    Sale price
    $39.95
    Regular price
    $59.95
    Unit price
    per 
    Sold out
  • Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules (12 Count)
    Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules (12 Count)
    Regular price
    $24.95
    Sale price
    $24.95
    Regular price
    $39.95
    Unit price
    per 
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  • Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules (100 Count)
    Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules (100 Count)
    Regular price
    $79.95
    Sale price
    $79.95
    Regular price
    $119.95
    Unit price
    per 
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  • Fish Flex - Cephalexin/Keflex 250 mg Capsules (100 Count) - 2 Pack
    thomas labs fish flex 250 mg antibiotics for fish
    Regular price
    $94.95
    Sale price
    $94.95
    Regular price
    $99.95
    Unit price
    per 
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  • Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules (100 Count) - 2 Pack
    Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules (100 Count)
    Regular price
    $149.95
    Sale price
    $149.95
    Regular price
    $159.95
    Unit price
    per 
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  • (Fish Flex Forte Equivalent) Fish Cephalexin Plus - 500 mg - 100 count
    (Fish Flex Forte Equivalent) Fish Cephalexin Plus - 500 mg - 100 count
    Regular price
    $47.99
    Sale price
    $47.99
    Regular price
    $69.95
    Unit price
    per 
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  • (Fish Flex Equivalent) Fish Cephalexin 250 mg - 100 count
    (Fish Flex Equivalent) Fish Cephalexin 250 mg - 100 count
    Regular price
    $36.99
    Sale price
    $36.99
    Regular price
    $49.95
    Unit price
    per 
    Sold out