Thanks. I may try to do that then. I do really appreciate all your input thus far, super helpful!
I did have 2 more questions though:
1. Is the reason why hypo in a new tank works vs in DT, is because when moving fish, the only ich that can be transferred over would be the ich that is currently infested on the fish, and would at some point drop off and die before it can encyst/change to the infective stage?
2. What's the best way you recommend to sterilize the tank, given it's a 150 gallon that was fully setup? Take out rocks, sun dry, take out sand, throw away (or sun dry), empty tank fully and let dry, then add new sand and add rocks after dry? Or is there a 'better' way? Eg. dump a ton of bleach in the tank with water as-is, let sit a bit, then remove all water and run new water, etc?
Thanks!