Fish Pen (Penicillin) 500mg 30 Tablets aquarium infection treatment Avoid combining with other antibiotics

Avoid combining with other antibiotics unless directed

Fish Flex (Cephalexin)

Continue feeding as usual

Effective for Multiple Conditions: Treats external and internal infections including dropsy

Do not release medicated water into natural bodies

Fish Pen (Penicillin) 500mg 30 Tablets aquarium infection treatment Avoid combining with other antibioticsFish Pen Penicillin 500mg 30 Tablets Fish Pen (Penicillin) 500mg Tablets are a reliable, fast acting treatment for gram positive bacterial infections in aquarium fish. Designed to combat conditions such as fin rot, columnaris, gill disease, and skin ulcers, this broad spectrum antibiotic helps restore health and vitality to your aquatic environment. Formulated for both freshwater and saltwater aquariums, Fish Pen dissolves quickly in tank water for