this is pretty impressive impressive results, i might start blasting my zoas too
I wonder why the daily 10 gallon water changes though. I would guess doing that would eliminate dosing but that would be a task for sure.
I have lost a colony in the past and now have one that was almost doubling in size every 5 days to almost totally closed within a week of first signs.
I blasted them tonight, fed them, and added replenish along with a few drops of iodine as it measured a tad low but was first time I tested for it.