Makes tap water safe for all pond life. Use when preparing a new pond, performing a water change, handling or transporting fish, or when fish are injured from disease. Pond & Fish Conditioner replaces the protective slime coating that fish require in times of stress. It also adds electrolytes, which help fish to fight stress. Apply to koi ponds, water garden ponds and aquariums. This formulations may be safely used at levels up to 10 times the single dose amount.