The Survival Guide To Ich
(AKA How to Treat Ich or White Spot Disease in Freshwater Fish) Top Takeaways Ich is one of the most common freshwater fish diseases. Ich comes from new fish and plants. It takes 2 weeks to eradicate it. Some of your fish may die anyway, depending on their immune system and how early you catch it. What is Ich? Freshwater ich, also known as ick or white spot disease, is one of the most common diseases in freshwater aquarium fish. It looks like little white spots or grains of salt covering your fish's body. Other symptoms include frayed fins and tail, respiratory distress, low appetite, and "itchy" skin (fish rubs against tank walls and ground). What Causes Ich? Your fish is infected with a parasitic protozoan called Ichthyophthirius multifiliis . It goes through a multi-stage life cycle: The protozoan attaches to your fish, forms a white protective cyst, and begins feeding. Once it matures, it bursts through the cyst wall, falls to the ground, and...