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Jul 25, 2020 9:49 AM CST

Hi, I'm Jordan, new to the forum, nice to meet you! Hope you can help Smiling
I'm worried about my adenium seedlings. In the past couple of weeks many of my seedlings have gotten burned looking tips, and yellowing lower leaves that fall off. This did happen to my older batch, and eventually most of them recovered after losing lower leaves. I did repot them over a month ago. Roots are all great. Potted in free draining mix with a small amount (~1/4) organic matter, in this case commercial cactus mix, with 3/4 perlite, vermiculite, coco coir, pumice and coarse sand/gravel. As they were growing I fertilized them often with dyna gro grow 9-3-6at half strength and they seemed very happy, but I've been doing it a lot less lately for various reasons. I water from the bottom, don't mist or anything, occasionally water from top to flush. I believe it is a nutrient deficiency, probably potassium or phosphate, and am going to use a 20-20-20 fertilizer at 1/2 strength to try to correct.

No pests, no rot. Growing indoors under T5s. Many different varieties. I did add imidacloprid granules to some, but not all of them.
Please help :)

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