I dont have 400 watter, I use 1k but what I've been told. For 400w is for only a couple of plants( 2 or 3 maybe) & you can have them closer to the tops. As far as scrubber goes, you should be fine but there is always other stuff u can buy to help out like "ona". & for a humidifer goes you wont know until you start growing. Goto your local Hydro or even Homedepot & get temp. guage with a humidity monitor & that will let you if need one. No reason to waste money if you dont need to.
BudLuv420 Reviewed by BudLuv420 on . newb-glowroom plan in action-deatails-and freel free to add to anything! First off, never grown b4 but have been readin threads and doing research! ------------------------- WHAT WILL B GROWN: -short Stuff auto assassin-5 fem. autoflowering seeds -Snowryder-2 fem. autoflowering seeds **thats a total of 7 seeds, and hopefully 7 healthy grows*** ------------------------------------- PLANT INFO: Short Stuff Auto Assassin- Type : Sativa dominant Auto flowering hybrid Rating: 5