Hello all, new to the site. I have an issue with my AK-48 grow that I for the life of me cannot figure out. The older fan leaves start to get faint rust looking spots on them and eventually it will consume the whole leaf and die. The plants seem to have stunted in growth for a while and the root systems are quite small. I have several years of growing under my belt and have had many successful grows with other strains. It does seem like all of my plants I have grown have done this to some extent, but not this bad. At first I thought it was either a Calcium or Magnesium deficiency, but after using Cal-Mag for a couple weeks now they are still doing it. This is driving me nuts!
Grow specifics: DWC buckets, RO/DI water (my own filter: starting water is usually 2 or 3 ppm), Flora Nova bloom using the Lucas formula, Cal-mag, water maintains around 70 degrees, tent environment at 72 degrees, fans for air exchange and wind simulation. pH 5.8 to 6.
Just started growing in a tent in a closed off room in a basement. Could this be lack of CO2? I do have a CO2 system on order and should be here next week. I also notice that my pH raises quite a bit in a 24 hour period. I pH down to 5.8 and within 24 hours it is back up to around 6.2. I have been keeping up on this daily and my pH meter is a higher quality Hannah that I calibrate frequently with fresh solution. The pH fluctuation seems kind of wild to me for a 24 hour period. Am I doing something wrong here? Could the DI portion of the R/O filter be causing this? It has to be something I am doing, because like I said, any strain I grow will do this, but not to the extent of these AK's. Thanks in advance and I really hope someone can help me out with this.
Grow specifics: DWC buckets, RO/DI water (my own filter: starting water is usually 2 or 3 ppm), Flora Nova bloom using the Lucas formula, Cal-mag, water maintains around 70 degrees, tent environment at 72 degrees, fans for air exchange and wind simulation. pH 5.8 to 6.
Just started growing in a tent in a closed off room in a basement. Could this be lack of CO2? I do have a CO2 system on order and should be here next week. I also notice that my pH raises quite a bit in a 24 hour period. I pH down to 5.8 and within 24 hours it is back up to around 6.2. I have been keeping up on this daily and my pH meter is a higher quality Hannah that I calibrate frequently with fresh solution. The pH fluctuation seems kind of wild to me for a 24 hour period. Am I doing something wrong here? Could the DI portion of the R/O filter be causing this? It has to be something I am doing, because like I said, any strain I grow will do this, but not to the extent of these AK's. Thanks in advance and I really hope someone can help me out with this.
