So I’m still unsure if Its ich, velvet, fluke, or all combined. pics and symptoms more on the velvet side looks like? So all my fish are in danger of dying? I have a 20 gallon glass aquarium or 40 gal bucket what’s better for the remaining fish. Goby, coral Beauty dwarf, fire angel, gold line rabbit fish, 3 damsels, 1 squami anthia(had 5, 2 weeks ago) Powder blue, Hippo, blonde naso, yellow and purple tangs? So after draining water should I still not exceed 40% water change or in this case I can do 100% water change? Thank you!