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Fish Pen (Penicillin) 250mg, 30 Tablets Fish Pen (Penicillin) 250mg, 30 Tablets

Thomas Labs Fish Pen (Penicillin) exerts a bactericidal action on gram-positive and some gram-negative bacteria. Penicillin is a broad spectrum antibiotic effective against a number of pathogenic bacteria associated with fish.

Our Price: $14.43
Fish Pen (Penicillin) 250mg, 60 Tablets Fish Pen (Penicillin) 250mg, 60 Tablets

Thomas Labs Fish Pen (Penicillin) exerts a bactericidal action on gram-positive and some gram-negative bacteria. Penicillin is a broad spectrum antibiotic effective against a number of pathogenic bacteria associated with fish.

Our Price: $16.58
Fish Pen Forte (Penicillin) 500mg, 30 Tablets Fish Pen Forte (Penicillin) 500mg, 30 Tablets

Fish Pen (Penicillin) exerts a bactericidal action on gram-positive and some gram-negative bacteria. Penicillin is a broad spectrum antibiotic effective against a number of pathogenic bacteria associated with fish diseases.

Our Price: $21.98