Collection: Fish Flex and Fish Flex Forte

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

Fish Flex and Fish Flex Forte 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 Fish Antibiotics Direct we get regular shipments of medicine 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)

5 products
  • Fish Flex Forte - Cephalexin/Keflex 500 mg Capsules
    Regular price
    $13.95
    Sale price
    $11.95-$113.95
  • Fish Flex - Cephalexin/Keflex 250 mg Capsules
    Regular price
    $10.99
    Sale price
    $7.95-$45.95
  • Fish Antibiotics Variety Package - 3 Count
    Regular price
    $124.97
    Sale price
    $101.95
  • Fish Antibiotics Variety Package - 8 Count
    Regular price
    $343.92
    Sale price
    $294.95
  • Fish Antibiotics Variety Package - 5 Count
    Regular price
    $239.95
    Sale price
    $204.95