ok the big bud is an advance nute. it needs a base nute to work. I use botanic pro bloom, in flowering stage, now per gal ,you would use starting off 5-7 mls of regular nutes( pro bloom) and on top of that would be the big bud, the bottle says 5 mls per gal but i only use 3 mls.. it wouldnt hurt to get some cal-mag as well, its only a table spoon pre gal along with the other nutes.. then you can work up from there. you dosage. i would only feed them nute feedings every other feeding. 1 feeding just regular tap water, ph adjusted to 6.3 then a nute feeding. theres no need to give your plant nute feeding every time you feed.