devilmoose
Member
Hey guys, I am a first time grower trying to find the source of some issues I am seeing in my plants.
These plants are about two months old. They were in 16oz plastic cups as seedlings, first under sunlight and then under a CFL bulb. They are now in ~5 gallon pots and under a 600w HPS. They have been in Sta-Green Moisture Max Potting Mix from the start, which contains 0.14% Nitrogen, 0.11% Phosphate, 0.08% Potash, and 0.02% Sulfur.
A couple weeks after moving them into the bigger pots and under the new light, I noticed some yellowing between the veins on some of the plants leaves. I fertilized with Miracle Grow all purpose 24-8-12 once, and with Miracle Grow all purpose 20-20-20 a few times since then, always at 1/4-1/2 strength. I have also watered once with epsom salt and sprayed with epsom salt solution a couple of times.
They have improved, but I still see some interveinal chlorosis and some curling of the leaves. From what I have read I have assumed this is a magnesium or zinc deficiency, which I have tried to correct with the fertilizer and epsom salt. I bought a PH test recently and tested my tap water, which showed slightly alkaline (7.2) but just about right with the miracle grow added.
Phew. I hope I am not overdoing this. Should I even be worried? If not, what should I do?
These plants are about two months old. They were in 16oz plastic cups as seedlings, first under sunlight and then under a CFL bulb. They are now in ~5 gallon pots and under a 600w HPS. They have been in Sta-Green Moisture Max Potting Mix from the start, which contains 0.14% Nitrogen, 0.11% Phosphate, 0.08% Potash, and 0.02% Sulfur.
A couple weeks after moving them into the bigger pots and under the new light, I noticed some yellowing between the veins on some of the plants leaves. I fertilized with Miracle Grow all purpose 24-8-12 once, and with Miracle Grow all purpose 20-20-20 a few times since then, always at 1/4-1/2 strength. I have also watered once with epsom salt and sprayed with epsom salt solution a couple of times.
They have improved, but I still see some interveinal chlorosis and some curling of the leaves. From what I have read I have assumed this is a magnesium or zinc deficiency, which I have tried to correct with the fertilizer and epsom salt. I bought a PH test recently and tested my tap water, which showed slightly alkaline (7.2) but just about right with the miracle grow added.
Phew. I hope I am not overdoing this. Should I even be worried? If not, what should I do?
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