Today, one of my favorite fish died suddenly. This purple tan (Fran Tarkingtang) developed a large white spot on his side. I first noticed it while treating my tank with Aptasia X. The spot was irregular and appeared to have some dimension to it. A day later, there were more white areas on his body (both sides). (See pictures) He remained active, swam normally and ate well. Tonight, we found him dead in the tank. All of the other fish in the tank look well. Any ideas? Could his rubbing against Aptaisia-X cause “skin” burns and kill him?
Thanks
Thanks