Kordon NovAqua Plus will help protect the health of both fishes and invertebrates by inhibiting viruses and harmful bacteria, and by providing an immune system booster and a protective body slime replacer.
In addition, NovAqua Plus adds electrolytes needed for proper osmotic balance, and detoxifies tapwater by removing all chlorine, balancing alkalinity, and helping stabilize water pH. NovAqua Plus will not harm plants, beneficial bacteria or biological filters, contains no phosphates, and will not contaminate ground or waste water.
The manufacturer states, for any Kordon water conditioners, including the NovAqua products, they are "Nontoxic to humans, pets, and aquatic life." This is included on most of their product labels as well.