Acidosis/Alkalosis
Symptoms:
Slimy skin (milky and cloudy), bleeding sores, thick cloudy coatings on the eyes, brownish coating on the gills, fish may dart and jump around the aquarium, jerky movements.
Causes:
Acidosis: Very low pH and hardness levels usually associated with pH swings.
Alkalosis: Fluctuation of pH and hardness level.
Treatment:
Acidosis: Check pH and carbonate hardness. Increase the pH and stabilize the carbonate hardness using baking soda, crushed corals, etc.
Alkalosis: Reduce the pH and hardness levels with the use of reverse-osmosis (RO) water and tannic acids by peat or driftwood.