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AmateurAmy
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Hi guys. I have some plants here grown in coco in 4 gallon fabric pots. Feeding at aproximately 1.2-1.4 EC from a base of 0.1-0.2EC (80%RO, 20%Tap). Fed for 3 minutes 2 hours after lights on then for 1 minute intervals every hour with the final feed 3 hours before lights off (reason I do this is so they have a drying period overnight and ive also heard they dont drink nutrients at first light?). 4x4gallon pots covering a canopy space of 2.9m^2. 2x600W lights at a distance of aproximately 22" from canopy. Temperature rarely exceeds 26°C so they are a very comfortable room temperature, however they did go through a period of heat stress recently because the light was a bit close.
Feed is made up of aproximately 1ml/L micro 1.5ml/L Bloom and 1ml/L Calmag, always pH of 5.8.
Using CO2 which bumps ppm to about a consistent 700ppm.
It always seems to be an issue with Calcium as I get very clear and obvious symptoms at the top leaves, fan leaves mottled with spots. It also appears like it may be some other deficiency along with the calcium deficiency, petioles are purple in places, dark green leaves? Splotches and yellowing appearing as shown in photos.
The Micro in the 3 part series is 7% calcium whereas my calmag is only 3% however it is 2% Nitrogen in the calmag so I dont want to go overboard with the Nitrogen in order to bump up the calcium. The runoff pH is kinda low at about 5.0pH and roughly similar EC as whats going in, but ive only measured the first morning runoff. Makes me think its a pH issue and I need to flush and bring pH up? But the EC of runoff is consistent with whats going in so it wouldnt be a buildup? Can anyone shine some light on what my issue is? Ive been growing for years but I always have the same problems at about week 4 and ive no idea what keeps happening. Thanks. Amy.
Hi guys. I have some plants here grown in coco in 4 gallon fabric pots. Feeding at aproximately 1.2-1.4 EC from a base of 0.1-0.2EC (80%RO, 20%Tap). Fed for 3 minutes 2 hours after lights on then for 1 minute intervals every hour with the final feed 3 hours before lights off (reason I do this is so they have a drying period overnight and ive also heard they dont drink nutrients at first light?). 4x4gallon pots covering a canopy space of 2.9m^2. 2x600W lights at a distance of aproximately 22" from canopy. Temperature rarely exceeds 26°C so they are a very comfortable room temperature, however they did go through a period of heat stress recently because the light was a bit close.
Feed is made up of aproximately 1ml/L micro 1.5ml/L Bloom and 1ml/L Calmag, always pH of 5.8.
Using CO2 which bumps ppm to about a consistent 700ppm.
It always seems to be an issue with Calcium as I get very clear and obvious symptoms at the top leaves, fan leaves mottled with spots. It also appears like it may be some other deficiency along with the calcium deficiency, petioles are purple in places, dark green leaves? Splotches and yellowing appearing as shown in photos.
The Micro in the 3 part series is 7% calcium whereas my calmag is only 3% however it is 2% Nitrogen in the calmag so I dont want to go overboard with the Nitrogen in order to bump up the calcium. The runoff pH is kinda low at about 5.0pH and roughly similar EC as whats going in, but ive only measured the first morning runoff. Makes me think its a pH issue and I need to flush and bring pH up? But the EC of runoff is consistent with whats going in so it wouldnt be a buildup? Can anyone shine some light on what my issue is? Ive been growing for years but I always have the same problems at about week 4 and ive no idea what keeps happening. Thanks. Amy.