Man I love a good reef argument. I can definitely see where both sides come from on to use bottled bacteria or not. I’ve only ever started tanks from new and did the usual cycle of just waiting patiently. I’ve never swapped things from one tank to another new tank and since I only used part of the rock and part of the water from the old tank, I didn’t know if that would be good enough to be able to go ahead and swap all my coral over. I think I have reached a conclusion of just buying a bottle and pouring half in and call it a day.