Features Broad spectrum antibiotic effective against most external infections Safe for marine and freshwater Minimal impact on bio-filter Overview NeoPlex™ is a broad spectrum antibiotic effective against most external infections of both marine and freshwater fish. Used as directed, NeoPlex™ will not discolor the water or damage the filter bed. It is well tolerated by invertebrates, although delicate species may be stressed. Active ingredients: neomycin sulfate (43%) Inactive ingredients: excipients (57%) Indications NeoPlex™ is appropriate for treating a variety of external infections of both marine and freshwater fish. Below are some of the more common diseases treatable with NeoPlex™. Be aware that many diseases and infections share similar physical and behavioral symptoms, e.g. clamped fins, lesions, loss of appetite. Fin Rot Bacterial Lesions Bloat Mouth Rot