AquaActiv Universal can be used universally in case of unclear diagnosis of disease, mixed or bacterial infections, fungal diseases, infestations by single-cell parasites or for general disease prevention. Symptoms may include whitish-yellow, slimy or cotton wool-like coating, ulcers, wounds, inflammation, lurching, loss of skin and scales, and blood stains. The fish medicine is suitable for pond sizes up to 10 m3.