Grow problem and not sure which action to take

https://www.rollitup.org/newbie-central/793796-need-help-then-post-your-10.html




This is my first grow so I know I have and will make mistakes even though I've been reading as much as I can.
3 plants total. 2 have yellow leaves with small brown spots. The 3rd has upturned leaves with brown spots that happened overnight after feeding. I know PH is an issue but grow store is closed till Tue (48hr from now) what should I do?
Notes of grow and current pics included below. 8 23W CFL’s ( 4X 2700K & 4 5000K)
Avg Day temp 78/ night temp 65
DIY Airpots- 1 pot made of screen other 2 plastic pots have lots of holes from screwdriver


JAN 19th is when they broke through the dirt


JAN 26 I took the seed cups and put in larger pots
Newbie Mistake #1 I used miracle grow potting soil with time release fertilizer.


JAN 28 slight yellowing, bought PH tester and soil was ph5. Flushed to get rid of as much MG crap as possible. Tested after and it was around PH6.


JAN 31- Roots Organics Buddha Grow which is 2-0.25-1.5 (did 1/2 amount bottle recommended) 5ml of BG to 1/2 gallon water. Split it 625ml to each plant.


FEB 6- 250ml of water to each plant to hold over till feed on the 7th


FEB 7- per bottle recommendations 30Ml fert to 1 gal, split between all 3 plants


FEB 8- PANIC mode! Upturned leaves on 1 plant with brown spots, other 2 yellow leaves. Soil test showed
Nitrogen: Low
Phosphorus: Med
Potassium: High
Ph 5


Flushed with water and ask the pros for advice.
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you shouldnt need any nutes on them lil plants,if thats soil i see there
there to small to start on nutes,youll burn the roots,id wait till there atleast a foot tall,they dont need much nutes when there that small,

Did you buy a soil or water ph tester? Most people recommend to not use the soil ph tester because it tends to be inaccurate, but to rather test the water you're putting in and even the run off. But I can tell you that if your ph is really at 5 that that is most likely your problem. Could be causing lockout, making it look like deficiencies and then continued feeding could exacerbate the situation. I'm not a pro so definitely wait for them to roll through but I believe that could be the culprit.

JoObJoOb said:

you shouldnt need any nutes on them lil plants,if thats soil i see there
there to small to start on nutes,youll burn the roots,id wait till there atleast a foot tall,they dont need much nutes when there that small,

Click to expand...

JoObJoOb is spot on. Did the very same thing to my first grow and now know what to do on my next grow. Just use purified water and make sure those babies get lots of light, lots of them and you should be okay.

Cut off the damaged leaves. You don't have anything wrong with your other nodes, looks to be a pH problem from the earlier feeding. Give the roots a good flushing until Tuesday and get them in better dirt.

Thank you so much for the help! hopefully one day I can return the favor.

To test PH I’ve been using Mosser Lee Soil Master Soil Testing Kit. this: http://www.lowes.com/pd_214248-83666-1210_0__?productId=3024638&Ntt=soil+test+kits&pl=1&currentURL=?Ntt=soil+test+kits&facetInfo=

It has 4 tubes and tablets. Allows testing of pH, nitrogen, phosphorus, and potassium.

For water I've only got pool test strips right now, but that will change as of Tue when the shop opens. I'm getting a proper meter and now also on the list is good soil.