HELP! Leaves are getting spots Brown and dark yellow talon claw at leaves tips drooping

[Trimmings426]

I was reading the plant problems guide last night after I noticed the leaves getting spots on them. I was reading the nitrogen toxicity and over watering sections. Now I've noticed that after I water the leaves start drooping with in 10 mins. Or so and have the symptoms of over watering drooping firm leaves. I always wait until the soil is dry about a inch down and the POTS feel light weight, maybe watering to much at a time but I really don't think I'm watering to frequently, I water every 3 days and give round 1/2 gal. Of water per plant. I have been feeding with 5ml.. CalaMagic and 5mg. Clean Kelp
(CalaMagic NPK=1-0-0) (Clean Kelp NPK=0-0-0.05) 5ml. is recommended dosage for veg for both nutes. And the MEDIUM is Fox Farm Ocean Forest. Want need to begin Fox Farm Organic Soil Trio for another week to week and a half. Got some pics to show now I did test the soil pH using a soil pH test kit and the reading was between 6.0-6.5 gonna water tonight and test runoff. Thank you all for your help in advance.

[Potted]

Could b as easy as water left on the leaf to dry? How’s the other side of effected leaves? It does sound like overwatering and looks like white mold.

[NAKEDGARDENER]

I am leaning toward potters diagnosis, it’s something I have experienced but I saw the water gathering on leaves that were touching on a fat leafed plant exactly the same as the ones in your pics,, circulation of air and height humidity was what was causing one plant in the three to drop in side of ten mins of watering, I found it was almost root bound in the pot, so watering regime should have been little and often avoiding run off every watering, also in ffof.

[Flockshot]

I think it may well be a phosphorous deficiency. If it gets any worse, I would give it a P supplement of some kind.

[Trimmings426]

Thats what I was thinking as well, I'm pretty sure I've overwatered a few times and they are right under 4 weeks old so still very young. I was reading that overwatering can almost certainly cause a P defiency to occur. I first noticed the spotting about midday yesterday after I got off work. I'm growing in FFOF and its almost time to begin adding the FF Soil Trio, could that be the case maybe that all the nutes in the Ocean Forest has already disipated out of the soil and I should go ahead and start the nutrients feeding? Or should I give them a good flush first then after they are good and dried out to feed again, then start the nutrient schedule feeding? I'm afrad the stress is going to make them hermie on me even though they are feminized and are female, I've already got their female preflowers and a few have small pistils comeing out from the preflower. thanks for your input Flockshot

[Flockshot]

This is why I grow in coco and not soil. Flushing soil will wash out the minerals that the plant needs, so I would say, just follow the feeding directions you had planned but start feeding now. Maintain your PH in the proper range.
Your leaves will never recover, and will continue to die wherever discoloring has occurred. Your indication that you have the problem under control is that no new leaves are becoming involved.

[NAKEDGARDENER]

Indeed flockshot is correct, over flushing living soil such as ffof isn’t good so I would go ahead and start feeding in small doses, I also use ffof and the Nute trio pack, my plants just began their 12/12 s hedule so am feeding them big bloom with the veg nutes and small amounts of Hydroguard, next week will begin a mix of bloom and veg nutes, I found with repotting after the water was running off clear, that the soil fixes ph well, but yo do need to replace those microbes. I enjoy soil growing, but next time I am really considering the perlite and coco coir system.

[Trimmings426]

I snipped the effected leaves today, the 2 in the back were crusty and dying. After I had them off I went to the sick plant forum and compared all the pics on the phosphorus deficiency page and come a 100% conclusion that it is a phosphorus deficiency. The other leaves as of now aren't showing any really bad signs of the P.D. athere is one tiny spot on 2 other leaves on the same plant, the other plant is not showing any signs of the deficiency. At the next feeding I'm going to start adding the soil trio nutes. Both plants are exactly 4 weeks old so I think I should start at the 4th week on the nutrient schedule, half strength. and work my way up slowly from there. Thanks to everyone who tagged in and offered your help with my problem, I appreciate you very much. I really like to have a 2nd 3rd 4th .... opinion when it comes to my girls. Thanks again. Happy Growing and have a great night.