Guards nitrite poisoning. Stimulates natural slime coat on fish. FINS Fins held close to body especially on livebearing fish. Gill or body parasites. Wastes, small animal and plant life.
Good filtration improves clarity.
Check for overfeeding or overlighting. TANK Small particles suspended in water causing a cloudy look. Floating silts from gravel especially in newly set up tank. Wastes, small animal and plant life. Direct sunlight should be avoided if possible.