Help Yellow leave edges getting worse :(

[Cyklos]

Hello,

I posted the pics below
My leaves became much worse. Identify please Bugs, too much water?

1. Setup 2x125 large CFL lamps
2. Autoflower Nothern Lights
3. 1 Fan
4. I did not start feeding nuts, can I start?

Cyklos Reviewed by Cyklos on 10-24-2013. Help Yellow leave edges getting worse :( Hello, I posted the pics below My leaves became much worse. Identify please :( Bugs, too much water? 1. Setup 2x125 large CFL lamps 2. Autoflower Nothern Lights 3. 1 Fan 4. I did not start feeding nuts, can I start? Rating: 5

[Cyklos]

What type of medium; soil or hydro? I bought soil from the hydro shop didn't have a name on it.



What brand and type of soil? Unknown

Indoors or outdoors? Indoors



What strain? Nothernlights Auto Flower



How old are the plants? Around 5 Weeks



What type of lights and how many watts? 2x 125 Large CFL lights



How far from the lights? 3-4 inches.



What is your watering frequency and source of water? Watering them according to weight of pot. Every 3 days or so

Give them around 0.7 L

What, how much and when was it fed? NPK? Nothing yet.

What is the medium/runoff pH and PPM if in hydro? Dont know



What are the temps and humidity in the room? 79 degress and 60 rH humidity

What size pots? 10L

Any bugs? Look real close. Unsure

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[Shovelhandle]

Potassium deficiency maybe? Check pH, very imortant. Use a good quality meter, if you can and make sure you calibrate it. Feed a mild solution of plant food. What are you planning on using? I would also try a foliar feed of very mild plant food with a drop of plain dish detergent.

[catbuds]

Yep! Shovel's right. I usually do 1/2 strength for foliar & also 1/2 strength regular soil drench feeding for young plants just starting. Here's something I do that I've never heard another grower mention. Since this is a potassium deficiency, I'd give it one feeding of a bloom food before going to a normal vegetative nute. Reason being, flowering nutes are higher in phosphorus & potassium than a veg nute, which is higher in nitrogen. You only need to do this once, & it works for me. Love NL, one of my all time favorites, very indica & it seems to be a heavier feeder. This deficiency likes to crop up just as young plants start their growth spurt, like when they leave the three leaflett stage. Next time, give your first feeding as soon as they put out the first leaf showing more than 3 leafletts, before they even uncurl all the way, & feed them at 1/2 strength. Beautiful little plants! ~~~ PEACE ~~~

[Cyklos]

Potassium deficiency maybe? Check pH, very imortant. Use a good quality meter, if you can and make sure you calibrate it. Feed a mild solution of plant food. What are you planning on using? I would also try a foliar feed of very mild plant food with a drop of plain dish detergent.

1.) I dont have a PH tester
2.) I wanna start using Biofizz next week

[polishpollack]

Name brand potting soil next time.

[jsengbusch88]

Yep! Shovel's right. I usually do 1/2 strength for foliar & also 1/2 strength regular soil drench feeding for young plants just starting.

It's all about that half strength I tell ya!