Dutch Crunch
Member
The short plant is a sour diesel/bubble gum cross, and the tall one is a white widow/purple eurkle cross
they are beginning their third week of flowering, each plant is 3-4 feet under a separate 1000 watt HPS.
They have 1500ppm of CO2 at all times during the daylight
The room is a 50-60% humidity at all times and 70 degrees F though the previous two weeks had 80 degrees F
They are watered via high pressure foggers every 10 minutes for 15 seconds
They are run off a 35 gallon reservoir that is 68 degrees F at all times with 500 ppm of RO filtrated water with advance nutrients connoisseur, some cal mag, silica, vitamin B, superthrive, and beneficial bacteria/fungus. though for the last two weeks this was at 1000ppm. the pH is constantly in the range of 5.5 to 6.0 without fail.
the Bottoms are a lush green with some old burn marks here and there, while the tops are pointing to god for help, completely Lime green with drastic cupping, so much so that some leaves are completely curled in like an ancient scroll (the secrets of good ganja locked deep within). the leaf tips looks like they are starting to burn now. ever since the start of flowering, the plants have been on decline, with the tops starting to yellow. Epsom salts were added at the end of the first week, but the plants still kept on declining, the reservoir was flushed halfway through the second week, and a small amount of a micro nutrient solution containing some zinc was added. again the plant kept declining, the reservoir was flushed again, at the end of the second week and the nutrient concentration was lowered to 500ppm, some of the color appears to be returning but marginally, and the cupping has worsened to what it is now.
What else could be wrong? its not too hot, its not neglected pH, could it be nutrient burn, if so why would cupping get worse? could it be chlorophyll bleaching from too much light? could it be too few nutrients, or some specific nutrient deficiency?
they are beginning their third week of flowering, each plant is 3-4 feet under a separate 1000 watt HPS.
They have 1500ppm of CO2 at all times during the daylight
The room is a 50-60% humidity at all times and 70 degrees F though the previous two weeks had 80 degrees F
They are watered via high pressure foggers every 10 minutes for 15 seconds
They are run off a 35 gallon reservoir that is 68 degrees F at all times with 500 ppm of RO filtrated water with advance nutrients connoisseur, some cal mag, silica, vitamin B, superthrive, and beneficial bacteria/fungus. though for the last two weeks this was at 1000ppm. the pH is constantly in the range of 5.5 to 6.0 without fail.
the Bottoms are a lush green with some old burn marks here and there, while the tops are pointing to god for help, completely Lime green with drastic cupping, so much so that some leaves are completely curled in like an ancient scroll (the secrets of good ganja locked deep within). the leaf tips looks like they are starting to burn now. ever since the start of flowering, the plants have been on decline, with the tops starting to yellow. Epsom salts were added at the end of the first week, but the plants still kept on declining, the reservoir was flushed halfway through the second week, and a small amount of a micro nutrient solution containing some zinc was added. again the plant kept declining, the reservoir was flushed again, at the end of the second week and the nutrient concentration was lowered to 500ppm, some of the color appears to be returning but marginally, and the cupping has worsened to what it is now.
What else could be wrong? its not too hot, its not neglected pH, could it be nutrient burn, if so why would cupping get worse? could it be chlorophyll bleaching from too much light? could it be too few nutrients, or some specific nutrient deficiency?
