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nix_nix

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@nix_nix, I thought I responded to this the other day -- but my comment isn't here, so I guess i didnt! I do try to follow AN's nutrient table. By week 3, the veg schedule recommends 4ml of grow/bloom to 2ml or b-52 (voodoo juice phases out by week 3). I may have made a mistake a couple weeks, but for the most part -- I'm following AN's schedule. The only thing that I can stress is that PPMs is what I really go by. I use AN's schedule to get the right proportions, but then I water my nutrients down to get the desired PPM. Anything over 575 ppm in autos tends to burn the tips (nutrient burn). I don't normally replace the solution every week, but I never let it go more than 2 weeks. If I'm going from veg week 2 to veg week 3, I might just pump out the old nutrient water and pump in the new stuff. One thing I'll add is that plants don't always like super clean buckets. They definitely dont want grime and sludge, but it seems like when you provide a super clean environment, the plants get a little shocked. It's almost like it seems unnatural or something. I don't know. I just wouldn't be anal about it -- don't overclean it. 1-2 weeks should be a regular cleaning and swapping of nutrients. pH Perfect works when there is a high concentration of it in the bucket. Autos use much less nutrients than photoperiods, so at low concentrations it doesn't work perfect. It is better than other nutrient lines I've tried (at maintaining pH anyway). But it's not carefree. My plants still get symptoms on their leaves (look at my pictures) because I don't pH it as frequently as I should (guilty as charged). Let me know if you have any other questions, brother! Stay safe! Stay red-eyed!
nix_nix
@nix_nix, Good catch! I should probably be more accurate with my nutrients. I basically follow the recommended portions -- so I'm more or less providing the Advanced Nutrient's schedule. What I mean to say is that I use double for Bloom/Grow than I use for everything else. Typically, I use 3 gallons of water for my nutrient mix. That's usually more than enough to cover my 7.5" line I use as a reference for top water level (once roots have reached it, of course). So, here's what I do for a 3 gallon mix: 20ml of grow/bloom. 10ml of everything else. That's total for 3 gallons of RO water. Depending on what week you're on -- some weeks in AN's schedule include more nutrients than others, which will naturally increase the PPMs. Generally, though, this 20ml base and 10ml everything else (per 3 gal) gets me around 650ppm. I usually will add a bit more RO water to it and mix it up to get it down to the level I want. So it'll take another quarter - to - half gallon to get me down to about 550ppm. On the other side, if I'm changing two plants at the same time -- let's say they're in the veg state together (AN schedule doesn't change much during veg), then I might add two gallons to that 3 gallon mix and bring it down to something like 300ppm, which is usually good for plants that are 2-4 weeks old. So, you're right -- I should be more transparent about my data so that others can learn from my mistakes. Hope this clears that up. I maintain AN's proportions, but then water it down. You can cut the 20/10 ml in half to 10/5 ml and get around 300-400ppm, too. Play around with the numbers, but 600ppm is usually pretty hot for most autoflower strains. My goal here is to reduce the amount of wasted expensive nutrients. Great questions!