Hey all! Ive got a 20 gallon bubbler which holds 15 gal of nutes. Ive got 5 calio clones from a friend :friends: freshly rooted crisscross patterned across its 16''x40'' lid. They are currently in a mix of 4 ml per gal PBP grow + 1/4 tea per gal epsom salts and lovin it. Ph with this strength and my tapwater so far has maintained 5.8-6 which me likes! The nutes havent seen 71 F and they for the most part stay at 66-68F. Now changing out 15 gal in this setup takes a lil time(too cheap for a pump right now) and is a pita. Are complete res changes necessary when using PBP and no problems are visible? Wouldnt a 50 percent change be almost as efficient? When plants are this small ie week 1 rooting i cant see myself changing the res for atleast a month unless disaster strikes! providing i add back nutes when i change or maybe change in between cycles and that would handle it? Is hydrogen peroxide a no no with PBP? Its my understanding that the nutrients are readily available and therefore shouldnt depend on beneficials but would benefit better in a sterile environment? Mediumless DWC works great with PBP and people weekly res changes so no beneficials are thriving in there. Right? IMO it does nothing more detrimental than the overhyped sm90 pirranah and similiar products but they are okay because the companies added a few more goodies to there peroxide? Right or wrong let me know what u guys think. How often if ever do i need to change my res and is h202 counteractive with PBP HYDRO_ORGANIC SOLUBLE FERTS? Texas Kid maybe this ones for you Keep it green