The_Leader
Non-Hilocentric
i use bio biz. lil more costly, at least here, but works. only drops ph .4 w/2O ml per 4Lwater. again thats here.
Mid-flower some leaves are going to start yellowing, as the plant start to pull its energy reserver into bud production before a wintery death it expects.
Rainwater is fine, the only thing is rainwater is a part A of B, meaning outdoors soil they get nutes from and rain water is fine to use indoors, but you must have a complete feeding regimen setup or you will have issues.