about three months ago i came home to one of my glowlight tetra twitching at the bottom of my tank, having lost all color, unable to swim. after euthenizing it, i had no other problems in my tank until last week (i tried posting the problem then, but the server was down). again i came home from work, and one of the tetra was twitching at the bottom of the tank, again having lost all color, and unable to swim. I had noticed about two days earlier this fish was losing its color, but it was behaving normally. My wife says she noticed the fish "swimming like it was drunk, on its side sometimes" while i was at work that day.
What's going on here? I've had the fish for about a year and a half total. Any ideas? How should i treat the tank, if any treatment should be done.
note: water stats are all normal, nitrate/ite, ph, ammonia, etc. i do weekly 20% water changes.
What's going on here? I've had the fish for about a year and a half total. Any ideas? How should i treat the tank, if any treatment should be done.
note: water stats are all normal, nitrate/ite, ph, ammonia, etc. i do weekly 20% water changes.