I have Pond NovAqua. Will that be OK? It says:
Instant water conditioner for the protection of aquarium and pond fishes and invertebrates. Forms a multi-layered, protective slime coating on and in fishes' skin, adds electrolytes needed for proper osmotic balance (and to ease stress in the fishes, such as during acclimation and illness), reduces the toxicity of nitrite, removes chlorine, detoxifies copper and other heavy metals, and helps stabilize pH and balance alkalinity. Does not interfere with fishes' gills or breathing."