Hello everyone!My friend is pretty new at this, and this the first grow he is doing, but he is not sure about several of the things that are going on with his young plant's. The grow setup is like this:
Grow tent 4x4x6.5
600W MH Lamp for Veg, and 600W HPS for flowering
Air cooled hood reflector with glass - 150mm
Exhaust Fan - 150mm High Quality Pro In-Line Metal Extractor Fan 120w Motor (550m3/h)
Carbon Filter - 150mm CKV-4 activated virgin carbon (480m3/h)
2 osculating fans - 15w and the bottom and at the top
The tent has very good passive intake and temps even at the hottest time of the day never rise more than 25C even with the lights on. He is keeping all the fans constantly working to create a quality airflow in the room and the RH humidity is always between 50-53% , temperatures never go bellow 23.5C and never above 25.4C and being monitored all the time by the sensor around the plants. The light distance between the seedlings and the lights is 24 inches, just to be safe, and the seedlings seem to like it that way, they are on 600w from day 1, on 18/6 light schedule.
He planted 5 seeds at 22/08 in Canna Coco Coir Professional Plus and he had started them directly in Coco with solo cups. In 3 days they all have germinated and seedlings appeared on the 4th day, with the 5th seedling appearing only at 7th day,but it still hasn't broke the seed husk though, def a slow grower but that's probably because he had to adjust him earlier, since the root started to grow in the wrong way, and this is the cause of it's slow grow.
After roots appearing at the bottom of the solo cups he transplanted 3 of them into 1 gallon smart pots with the same Coco in it, it was around the 7th day from the start, 3 of them were transplanted, but the 4th plant was transplanted 2 days later as it was growing slower too for some reason, plus it could not open up properly. He had to remove very carefully a thin film of leftover from the seed husk for her to fully open it's cotyledons but the plant has not grew true leaves after that.
From the start he has been watering them with tap water, which is actually pretty good and pure in our municipality having 7.2PH and 0.1 EC, around 50ppm. He adjusted the PH to 5.9 and was watering the plants from day 1 to day 7 with water and no nutes, since the plants have enough food to last them 1-2 weeks, but since coco is a medium with no nutes in it, he prepared a really weak nute mix to start them off a bit after 7 days.
For feeding he is using Canna Nutes : Canna Coco A&B, Canna Rhizotonic, Canna Cannazym, and Advanced Nutrients Sensi Cal Mag Extra, since there are no other available Calmag solutions here. He has Canna Bloom too, but it is for Flowering stages.
The weak mix consisted of 1.6 gallons of water (6l) , 6ml of Canna Coco A&B, 6ml of CalMagExtra, 10ml of Rhizotonic, 8ml of Cannazym and then he PH-ed the water to 5.9.
He watered the plants with no run-off, with weighting in the pots when they were pre watered with the nutrient mix before transplanting the plants into the smart pots, so when they become lighter about 300-400g he waters them with 20% water of the whole volume of the pots to not over water them but still keep enough moist in the soil for feeding. Should he water them normally with 20% water runoff or should he keep watering them like that?
Besides that, he is a bit worried about couple of his plants, I'll upload photos of them. They all have been watered equally with the same nutrient mix, except the seedling that had not emerged yet from the seed husk and the seedling that has only cotyledons and no true leaves yet, they have been watered with regular water 5.9PH and just once with a weak mix of Rhizotonic and water to boost their root growth a bit, which actually helped.
2 of the plants seem fine, though the second one had an accident during her transplantation and had a part of her root ripped, but since then it bounced back nicely, with the help of Rhizo, though it definitely slowed down it's progress. He is most worried for the 3rd of the plant which started curling up and seem a bit yellowish compared to others, which is strange since it has the same amounts of nutes, water and light, and the other 2 are doing fine. And the 4th plant is already at 13th day after being planted, still has only cotyledons and no true leaves formed yet.
He had decided to flush the medium with a much weaker nutrient mix, 30% run off, and the coco is still moist after 2 days.
The first two plants are developing nicely, though it seems that they start to curl a bit, the third plant have been growing at a much slower rate (still growing though) and yesterday after the dark cycle her leaves curled upwards and started sweating around the edges.
No idea why this happened, the temperature is not high enough for it to have a heat stress, the room temps have not gone above 24.5C. Backed off the light a bit, will see if that helps, leaves are not yellowing - a bit lime green but that's it. The other two are without changes , the seedling with cotyledons still has not developed anything, same for the fifth one.
What can i do for the curling up of the leaves on the third plant? Should i lower the nutrient mix even more? Been feeding around 400PPM, 5,9 PH or should i reduce the distance between the light and the seedling even more? What to do about the seedling that are growing slower?
Sorry for the long post, wanted to give as much information about the growth, so there would be less questions about it. Uploading the pics bellow.
Grow tent 4x4x6.5
600W MH Lamp for Veg, and 600W HPS for flowering
Air cooled hood reflector with glass - 150mm
Exhaust Fan - 150mm High Quality Pro In-Line Metal Extractor Fan 120w Motor (550m3/h)
Carbon Filter - 150mm CKV-4 activated virgin carbon (480m3/h)
2 osculating fans - 15w and the bottom and at the top
The tent has very good passive intake and temps even at the hottest time of the day never rise more than 25C even with the lights on. He is keeping all the fans constantly working to create a quality airflow in the room and the RH humidity is always between 50-53% , temperatures never go bellow 23.5C and never above 25.4C and being monitored all the time by the sensor around the plants. The light distance between the seedlings and the lights is 24 inches, just to be safe, and the seedlings seem to like it that way, they are on 600w from day 1, on 18/6 light schedule.
He planted 5 seeds at 22/08 in Canna Coco Coir Professional Plus and he had started them directly in Coco with solo cups. In 3 days they all have germinated and seedlings appeared on the 4th day, with the 5th seedling appearing only at 7th day,but it still hasn't broke the seed husk though, def a slow grower but that's probably because he had to adjust him earlier, since the root started to grow in the wrong way, and this is the cause of it's slow grow.
After roots appearing at the bottom of the solo cups he transplanted 3 of them into 1 gallon smart pots with the same Coco in it, it was around the 7th day from the start, 3 of them were transplanted, but the 4th plant was transplanted 2 days later as it was growing slower too for some reason, plus it could not open up properly. He had to remove very carefully a thin film of leftover from the seed husk for her to fully open it's cotyledons but the plant has not grew true leaves after that.
From the start he has been watering them with tap water, which is actually pretty good and pure in our municipality having 7.2PH and 0.1 EC, around 50ppm. He adjusted the PH to 5.9 and was watering the plants from day 1 to day 7 with water and no nutes, since the plants have enough food to last them 1-2 weeks, but since coco is a medium with no nutes in it, he prepared a really weak nute mix to start them off a bit after 7 days.
For feeding he is using Canna Nutes : Canna Coco A&B, Canna Rhizotonic, Canna Cannazym, and Advanced Nutrients Sensi Cal Mag Extra, since there are no other available Calmag solutions here. He has Canna Bloom too, but it is for Flowering stages.
The weak mix consisted of 1.6 gallons of water (6l) , 6ml of Canna Coco A&B, 6ml of CalMagExtra, 10ml of Rhizotonic, 8ml of Cannazym and then he PH-ed the water to 5.9.
He watered the plants with no run-off, with weighting in the pots when they were pre watered with the nutrient mix before transplanting the plants into the smart pots, so when they become lighter about 300-400g he waters them with 20% water of the whole volume of the pots to not over water them but still keep enough moist in the soil for feeding. Should he water them normally with 20% water runoff or should he keep watering them like that?
Besides that, he is a bit worried about couple of his plants, I'll upload photos of them. They all have been watered equally with the same nutrient mix, except the seedling that had not emerged yet from the seed husk and the seedling that has only cotyledons and no true leaves yet, they have been watered with regular water 5.9PH and just once with a weak mix of Rhizotonic and water to boost their root growth a bit, which actually helped.
2 of the plants seem fine, though the second one had an accident during her transplantation and had a part of her root ripped, but since then it bounced back nicely, with the help of Rhizo, though it definitely slowed down it's progress. He is most worried for the 3rd of the plant which started curling up and seem a bit yellowish compared to others, which is strange since it has the same amounts of nutes, water and light, and the other 2 are doing fine. And the 4th plant is already at 13th day after being planted, still has only cotyledons and no true leaves formed yet.
He had decided to flush the medium with a much weaker nutrient mix, 30% run off, and the coco is still moist after 2 days.
The first two plants are developing nicely, though it seems that they start to curl a bit, the third plant have been growing at a much slower rate (still growing though) and yesterday after the dark cycle her leaves curled upwards and started sweating around the edges.
No idea why this happened, the temperature is not high enough for it to have a heat stress, the room temps have not gone above 24.5C. Backed off the light a bit, will see if that helps, leaves are not yellowing - a bit lime green but that's it. The other two are without changes , the seedling with cotyledons still has not developed anything, same for the fifth one.
What can i do for the curling up of the leaves on the third plant? Should i lower the nutrient mix even more? Been feeding around 400PPM, 5,9 PH or should i reduce the distance between the light and the seedling even more? What to do about the seedling that are growing slower?
Sorry for the long post, wanted to give as much information about the growth, so there would be less questions about it. Uploading the pics bellow.
