Do my neon tetras have neon tetra disease (NTD)?

NTD is one of the most misdiagnosed diseases in the hobby. Just because a neon tetra is sick doesn’t automatically mean that it has neon tetra disease. If your tetra has white spots, it probably has ich. If your tetra has a white patch, it could be symptom of NTD, but it could also be a symptom of many other illnesses. NTD is fairly rare, so the white patch is more likely caused by a common bacterial or fungal infection. We recommend using the quarantine medication trio (which treats bacteria, fungus, and parasites) and building up the fish’s immunity with fresh foods and good care. If the disease still doesn’t go away and is steadily knocking out fish over time, then you could have a case of NTD.

For more information on how to prevent NTD, read the full article here.