Nwtexan
Well-Known Member
Hello,
I am having what I think is maybe a calcium/magnesium deficiency. Light green along midrib, mostly in leaves that are getting some light. I've got the same in both plants. There are a few brown spots, also close to the midrib
-I am growing indoors, with LED(currently 100W). The light is at about 80% and about 24" away. I have been slowly increasing light as they transfer into Veg, but around 220-250 UMOL. Waiting to increase until i figure out what is goin gon
-I am using soil-FFHF- I amended it with some perlite, some worm castings, humus and recharge. Plants are currently in 1 G fabric pots.
-I've been increasing my watering as the plants have gotten bigger. More recently watering to light runoff and then letting soil get decently dry before next watering.
-My water is well water that comes out of the faucet at about 6.9 and 76PPM.
When I water, I have been using a really light dose of Calmag( 1 1/2ml) to get my PPM's up to 125-150. I PH my water to 6.2-6.3. I had not added any nutrient until yesterday. Yesterday I added a light amount of Big Bloom( 1 1/2 TBL per gallon).
I first noticed some light green spots along the midrib of some of the fan leaves on both plants about 3 days ago. They seem to mostly be in leaves that are in the light. The lower leaves in the shade don't have this. I am seeing some of the same light green in some of the emerging leaves.
After watering last time, I checked the runoff, and it was around 5.8. I did a slurry test with the same soil that i used to pot the plants. It came up at 6.0. I know that 6 is at the low end of acceptable for soil grows. My semi-educated guess is that I am getting a Calcium and/or magnesium deficiency because my PH is too low.
What is the best course of action?
My plan was to move the plants to 7G fabric pots this weekend. I was gonna mix my current mix with some ocean forest. I am imagining that i should mix some additional dolomite into the soil and let it sit until I repot. Is there anything i can/should do before then?
I am having what I think is maybe a calcium/magnesium deficiency. Light green along midrib, mostly in leaves that are getting some light. I've got the same in both plants. There are a few brown spots, also close to the midrib
-I am growing indoors, with LED(currently 100W). The light is at about 80% and about 24" away. I have been slowly increasing light as they transfer into Veg, but around 220-250 UMOL. Waiting to increase until i figure out what is goin gon
-I am using soil-FFHF- I amended it with some perlite, some worm castings, humus and recharge. Plants are currently in 1 G fabric pots.
-I've been increasing my watering as the plants have gotten bigger. More recently watering to light runoff and then letting soil get decently dry before next watering.
-My water is well water that comes out of the faucet at about 6.9 and 76PPM.
When I water, I have been using a really light dose of Calmag( 1 1/2ml) to get my PPM's up to 125-150. I PH my water to 6.2-6.3. I had not added any nutrient until yesterday. Yesterday I added a light amount of Big Bloom( 1 1/2 TBL per gallon).
I first noticed some light green spots along the midrib of some of the fan leaves on both plants about 3 days ago. They seem to mostly be in leaves that are in the light. The lower leaves in the shade don't have this. I am seeing some of the same light green in some of the emerging leaves.
After watering last time, I checked the runoff, and it was around 5.8. I did a slurry test with the same soil that i used to pot the plants. It came up at 6.0. I know that 6 is at the low end of acceptable for soil grows. My semi-educated guess is that I am getting a Calcium and/or magnesium deficiency because my PH is too low.
What is the best course of action?
My plan was to move the plants to 7G fabric pots this weekend. I was gonna mix my current mix with some ocean forest. I am imagining that i should mix some additional dolomite into the soil and let it sit until I repot. Is there anything i can/should do before then?
