NEED HELP DIAGNOSING PROBLEM!!! PICS

[stinkyattic]

Indeed it is Chongman, and I'm splitting off the thread-jack for ya.

[chongman420]

Sweet! Thanks! :jointsmile:

[dr4bud]

It looks like a chemical burn to me, except for the curling which looked like heat? Be careful not to put he heater near the plant, it will dry it out. Did you feed them recently?

[stinkyattic]

So i have this reoccurring problem with the last couple grow attempts. I use Earth Juice Grow, Calmag, and Superthrive for veg with 2 tsps of high nitrogen bat guano. I use FFOF soil and I use RO water. I dont have a ph meter but I water them with plain water every other time. Temps are between 69-76. Any advice?

Well back to this original post.
I've heard less than positive things about Earth Juice.
Since you say this is a recurring problem, I'd do a major overhaul in your feeding routine.
I see you are headed in the organic direction. I'd strip down to a SINGLE veg fert, and I'd go with Pure Blend Pro Grow soil formula. If you don't care about organic, Botanicare Power Plant is REALLY easy to deal with. The way I see it, your first grow(s) should be really streamlined, no additives, a simple cannabis-specific one-part fertilizer, and soil that is lighter than you might be using down the line. You will be able to add to the routine later once you know that you can grow a healthy plant with the basics.
Lose the guano for now.
How much superthrive do you use? I'd lose that as well too, and save it for transplanting only, to be used at the rate of one drop per gallon for the FIRST feeding after transplant.
Lose the RO water as well, and switch to tap. You won't have to use CalMag.
When you transplant, use more perlite in the mix to be sure that the soil can dry out well between waterings.

[chongman420]

Yea after looking at the Earth Juice bottles I have (Grow, Bloom, Catalyst, Microblast) I notice that they lack a few nutes such as sulfur, calcium, chlorine, copper, selenium, and silicon. I dont know if this is part of my problem. I use 1/2 tsp of superthrive but I dont give that to them every time I feed them. I only use RO water because my tap water leaves the crusty white ring around the top of the soil level. I was debating between Fox Farm and Botanicare nutes for next grow. I read the labels on their websites and it seems like FF has more nutes but Im no expert. O yea the heater is about 8ft away from my veg cab. You guys rule!!!!!!!!! :jointsmile:

[Bongojaz]

rootbound doesn't make your plant look like that. you can grow in most any sized container and do well. all that is affected is the size of the plant and yield. if all nutritional needs are met, then you're good. a good meter for checking ppm is a good idea but not absolutely necessary. you could probably benefit from one, until you get more familiar with your nutes anyway. you can't really go by what's on the bottle. companies make money by selling you their products. i.e. the quicker you use what you have and buy more, the better! a ph meter of some kind is key. a good stand alone fert. is the way to go for beginners. pure blend is a very good all around fert. i think the pro version is for hydro. i use it early on in veg. and i grow in coco. if you're gonna use tap water, let it sit for 24 hours first, to let the chlorine dissipate. earth juice is pretty acidic so i'd let that sit for a good day too to reduce acidity. in soil, feed once a week. in between plain ph'd water. 6.5 ph, is a good place to be.

[stinkyattic]

I use 1/2 tsp of superthrive but I dont give that to them every time I feed them.

Houston, we have a problem. Dosage for SuperThrive is 1 drop per gallon. I checked using a liquid of similar viscosity to ST and found that 40 drops made up to 1mL. There are almost 5mL in one teaspoon, so you are using TWO HUNDRED TIMES the recommended dosage. Hence the extremely soft-looking, dull, intensely-green leaves with burnt tips. Nitrogen toxicity.

FLUSH FLUSH FLUSH and lay off the Superthrive!

[chongman420]

Ok so no more Superthrive.

[Bongojaz]

you're welcome.

[stinkyattic]

lol... If you come on here expecting to be thanked for every bit of advice, you're going to be sorely disappointed...