my smallest red tailed payara and my silver dollars are being torn up by possibly my massive red tail wat should i do to heal them and prevent fungus and cure any fungus
.should i do a water change add new water add stress coat wich is supposed to also heal tissue, and add some healing salt and if so how much salt per 10 gallons i dont want to lose any of these guys
.should i do a water change add new water add stress coat wich is supposed to also heal tissue, and add some healing salt and if so how much salt per 10 gallons i dont want to lose any of these guys

everything else is healing and fine i will be fixing my uv steralizer soon so i can try to prevent fungus and ill be doing alot more waterchanges at least the one is fine ive also lost a juruense cat and a jurupari to simaler problems