Last night I noticed that a small clump of my mean greens had zoa pox. They were on a little rock with a bunch of other colors that I was trying to make a rainbow of zoas with. I dipped the whole rock in a strong lugol's dip, scraped off the infected zoas and tossed them. I ordered Furan2 and set up my little 5 gallon. Do I need to treat ALL of my zoas now? Does it spread like that?





