Blagdon 500ml Anti Ulcer - YR233Use Anti Ulcer when fish are suffering any of the following: ulcer like sores on skin; gills are rotting, reddening around fins and skin; fish are emaciated , sluggish and have clamped fins; fish are dying without obvious cause. This treatment has a unique formulation to effectively treat against internal bacterial infections. Anti Ulcer is harmless to filter and all species of pond fish, plants and water using wildlife. This treatment acts against