is generally related to poor diet and water conditions. The first thing to let us know are your water parameters and tank size. With these CA
/SA are prone to this when kept in poor water conditions with ammonia/nitrite present and high nitrates for prolonged time. The first step is to keep the water pristine with no ammonia/nitrite pressed present and the nitrates must not get over 20ppm. The next step is diet, as vitamin defiency can also contribute. New Life Spectrum is the best food to help promote health, disease prevention and color. Don't worry about treating with meds unless you see a seconday infection like fuzzy stuff. Keep your water perfect and feed them a quality food and it will go away.