spotting curling leaves???

what's good everyone? i am having a problem with my ladies. this is the second batch in a row (only 2 batches ever) that is showing the same problems. the leaves (seems like mostly up top) are getting dry, and turning different directions. they are also spotting with copper-colored spots.

it seems that they start showing signs once they are switched to flower. here is the troubleshooting form:

E-indoor
E-soil
E-potting soil,.10-.08-.06
CSL-Perfect Mix

SCL-nothing added to soil but perlite
SCLR-don't know runoff
E-Water source-tap
E-Source water pH-don't know
E-Age of plant-62 days
E-Super Bloom by green light, 12-55-6, 2 TBSP of molasses, superthrive (1/2 cap each watering)
E-Rate of application (if hydro, this is your PPM number, preferably after each component is added)-water/feed, water/feed, water
E-Lighting source and distance from plant-8 CFLs ~1650 lumens each
E-Air temperature (both day and night if you are running a dark period)-day 75-82, night 65-75
E-Air % Relative humidity-20-40%
E-Lighting schedule-12/12
E-Type of ventelation-2x 120mm fans with appropriate size passive intakes

i know i need to get some way to check pH, that's next on the list.

i also have the full fox farm line-up for ferts, the wet and dry. should i switch this late into flower or just start them on the next batch?

thanks for your help!

-shake

here are some pics of what i'm describing. thanks again!

looks like nute burn a little; but yeah you def want to get something to test your ph.

My guess is pH lockout, figure out how to check it ASAP! Its necessary to know in order to grow good cannabis!

ok, ok. i will try to get a pH test kit tomorrow. that was what i was thinking, but who knows. on the last batch the leaves were deep, dark green, almost blue. i read somewhere that it was a lockout of either phosphorus or potassium, can't remember which.

thanks for the help!

-shake

this only happens after switching to 12/12? fine until then?

then I'd say it has something to do with the switch. likely nutes.

that's that way it seems mdmpele. i've got some new nutes to try, just not sure if i should switch during the middle of flower or what.

-shake

Quote:

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Originally Posted by headshake

that's that way it seems mdmpele. i've got some new nutes to try, just not sure if i should switch during the middle of flower or what.

-shake

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Shake, IMHO, if you aren't happy with the way your plants are looking under your current program, then I would switch if you feel you have a better nutrient option now.

I think your SuperBloom may be a little hot, ie; too much phosphorus. If you are going to use a single bloom nute for flowering, you will def want something a little more balanced in the P and K numbers and low in N.

If you have the FoxFarm line, I would switch to them immediately. I would also recommend starting them at quarter strength since your CFL's wont cause the same aggressive nutrient uptake that HID lighting will cause.

My opinion only, hope it's worth the 2 cents it cost me.

sounds good irydum. thanks for the advice. i just watered them yesterday. so i might water them once more, and then begin the feeding with the fox farm line-up.

thanks again everyone!

-shake

that is a definate PH issue bro ..get that straight and you'll be back on track.
A PH issue will look like several kind's of deficiency...becouse it IS.

Dive:stoned:

I'm with irydyum on this one. Looks more like overnute from using the Super Bloom by green light, 12-55-6 at full strength. Great for roses outdoors, but must be adjusted down, for indoors in pots. (especially using CFL's)

I'd flush well, and give the Fox Farms a try, using their handy feeding schedule as a guide. Personally, I'd cut the nutrients in half, but feed twice weekly. (same weekly totals, though) Easier on the plants, and allows for 'fine-tuning' your dilutions and quantities.
(but I'd use the Big Bloom at half-strength, only once a week, if you have it)

Quote:

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Originally Posted by Divestoned

that is a definate PH issue bro ..get that straight and you'll be back on track.
A PH issue will look like several kind's of deficiency...becouse it IS.
Dive:stoned:

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And you are sure about that...? Please tell us the indicators, rather than offering a blind "you have my word on it" diagnosis... What on the plant indicated ph lockout?