That is correct. Ich is a Protozoa and has a cyst form as part of its life cycle.it is this cyst form that can survive up to 76+ days on a hard surface before infecting again. .it is this form that is impractical to kill in a reef tank. The only way I got rid of it was to remove the fish from the DT for 3 months.Hey guys, follow up question. Been doing a lot of reading and research, the opinion is that the only way to get rid of Ich is to eradicate which means the tank needs to go fallow for a period of 76+ days. What are your opinions?
Also, Ich is only on my Anthias. Research tells me that medicine will displace the Ich from the fish onto the ground. This is where it will repopulate and attack the fishes again at a later time. Just wanted to see how others have treated Ich.