Magic has had great advice for everyone here regardimg his use of the bloom booster HB, the Bloom SeaGrow, & use of Avalanche. It will all work in any combination. The thing I want to stress is that Avalanche is a flower hardener formulated to do what Gravity did without using any synthetic PGR (i.e. Paclo). It's not going to raise your ppm that much at all! I have friends that use 10ml b/c of price point and it works so well with their specific strain. I would not stop using HB at all while using Avalanche. Totally doffernt products. Avalanche has a specific micronutrient chelate and 5 specific amino acids to create the 'hardening' effect. Im guessing HB is hawaiin bud on this site but Grow makes an awesome 0-50-30 called Hula Bloom so I'm a little lost on the HB as they both got the bill lol. I personally like a lot of potash towards the very end of flowering to build up essential oil production & I guess the 17% in hawaiin and the 26% from the SeaGrow is suffice. I will break down elemental Ppm for potash in another post using each product at set dilution rate. Obviously auto's are a different animal than photoperiod plants so take that into consideration and utilize your feed specific to your genetics. I will expand a little based on forums feedback or further questioning