velvet question
 

i had a outbreak of velvet in my tank and lost 6 fish with 2 more i dont think will make it before i try buying new fish how long sould tank set ?also i do have a hospital tank <going try find one >sould i just leave the few fish that velvet didnt touch in main tank for a month or go longer

Sorry to hear, i think once you have velvet outbreak, it will hit all fishes so some fish does not show at beginning because they are still strong comparing to others. I would put all fish in hospital tank and treat it. The life cycle of velvet is 6-8 weeks so you'll need to keep the tank empty of fish for at least that long I think