Unfortunately she died ;-; she stopped eating and couldnāt swim at all, she started rolling around trying to swim but just couldnāt. My water parameters are ammonia:0 nitrate:0(tiny amount) nitrite:0 . I noticed what looked like a faint green tint on her scales, possibly velvet but I did research and donāt know what happened. Do you have any idea if whatever happened could spread to the other fish/ how I can prevent it? Thanks