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Fish Pen (Penicillin) 250mg, 30 Tablets
Fish Pen (Penicillin) 250mg, 30 Tablets
Our Price: $15.67

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.
Fish Pen (Penicillin) 250mg, 60 Tablets
Fish Pen (Penicillin) 250mg, 60 Tablets
Our Price: $18.06

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.
Fish Pen Forte (Penicillin) 500mg, 30 Tablets
Fish Pen Forte 500mg, 30 Tablets
Our Price: $23.53

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.