QT six weeks---QT six weeks---QT six weeks---QT six weeks---QT six weeks---QT six weeks---
A lot of people will tell you smaller numbers, but the entire life cycle of the parasite is 37-39 days from the infestation, free swimming trophants, encystment, theronts, blah blah. The problem when cutting the time shorter is that you don't know which stage of the life cycle it's in. Is the fish infected or is it the water?
As the universally acclaimed expert Rosanne Rosannadanna once said, "if it's not one thing, it's another thing" RIP.
For what it's worth, I had the same fear so I kept my eyes open for fish for sale by moving hobbyists. My two Hippos (one bought from a guy moving to Japan, the other from a DT at MACNA in Atlanta) are now 4" and 5" respectively and doing great!.