I just read on Kordon's website that some Ich species have a life cycle of 35 days! I got rid of the API product as it only treats for 6 days. Switched to Kordon Rid Ich Plus. May be a long road.
Ew. Ich sucks DONKEY ***k. Excuse my language. I learned it from my husband. My tetras are spottier than ever and I raised the temp to 84 degrees, my poor cories!!!