9-1-1 Contagious, Deadly So at first I thought this was just my tank cycling with fish (forgot to fishless cycle). Then things have started to get weird at I am 99% sure they have a deadly parasite. I have lost 75-90% of my stock and 100% of certain species with all remaining fish exhibiting symptoms. I will put the symptoms and hopefully someone can help me. slightly red gills always staying at surface of water white stringy poop loss of coloration lack of appetite (occasionally) very weak swimming, small current pushes rotting fins (treated for fin rot, nothing) And, I was unfortunate to see one of my fish die and be able to do nothing to stop it but gave me some more symptoms. swimming upside down alive sinking very slowly gills rapid then slowing down to nothing Water Levels: all 0 Edit: 1 more guppy death. New symptoms have surfaced. Black mark appears above belly and appears to eat downwards. Black dashes on top of head (not sure if this is a symptom). Please reply ASAP with disease and treatment possibilities if nothing occurs they will all die. They have 12-24h tops probably. Edit 2: Please reply on any thoughts! New symptom. Their poo is not as much white and stringy, there some brown like normal poo but their are odd lumps in it. Edit 3: 2 more longfin zebra danio deaths only survivers are 3 platies and 2 guppys and 1 swordtail all of which seem very sick.