bottom leaves dieing. 3 weeks into flowering

[weedies]

Hi Guys. What is going on with my leaves? Is this normal? Thanks!

[Ganja Guerrilla]

sorry cant see the details in the pics and include a shot of the whole plant

[Chronic*Q('-'Q)]

you can see the way the leaves show chlorotic symptoms on the edges, this is a typical K def. They droop while getting crusty edges then fall off however it looks like you picked them off. If you did wait for them to drop off themselves otherwise if you don't fix that symptom it will start right away on the next row of bottom leaves!!!
I recommend 1 tbl sp blackstrap molasses/ Gal of water!
Molasses contains all sorts of helpful goodies including Potassium, calcium and Iron. It also works great as a chelating agent making micro's more available!
Good luck

Chronic

[weedies]

Thanks! Here are some pic of the plant. It's spreading like a wildfire!

I added some bloom 0-5-4 last night. I'm going to do a complete water change soon. I'm using the Lucas formula twice as much bloom (0-5-4) to micro (5-0-1). Maybe this is not supplying K when they move into flowering? I'm using the General Hydroponics Flora series.

Thanks again guys.

[Ganja Guerrilla]

thats a potassium def, check your PH to be certain its not PH related
I think your nutes are weak in the K, I dont do hydro so wait till one of the hydro guys shows up, to recommend better nutes

[weedies]

Thank you so very much! The leaves would be gone in < 1 week at this rate. My pH was around 5.6 when I I reported the first pics. Thought it was borderline and not a problem.

I did a water change and added 20tsp 5-0-1 and 30tsp 0-5-4 to 10 gallons. This is what the bottle recommends, but without the grow formula which mostly N I believe. My TDSs are @ 1367 and pH is a verified 5.9.

Hydro heads please step in!

BTW some of the new growth on those branches are kind of bleached, but they sprouted in the the shade. Thanks Guys. so much

[Ganja Guerrilla]

your PH is OK,
bumpin the nutes should do it , but again wait for a Hydro head confirmation

[Num]

watch out for mg def in wk 3-4
most common cause of leaves fkin up & falling off in flower.
get the epsom salts ready.
Ur not doing urself any favours by upping concentrations - plant won't grow faster by overfeeding, in fact ur more likely to stunt it's growth.
Back off with ur feed & add epsom salts until they finish.

wouldn't worry about pk levels if ur using a good feed - just make sure u clean out proper between changes as any sediment can be stirred up when u refill & cause ec way too high & nasty waste salts in the fresh feed!

u can expect to lose lower leaves as u come thru the stretch, & even more as the buds develop, but don't pull them off - let the plant consume the leaves.
As long as ur not overfeeding they'll be ok.

i play safe with mine by keeping the same ec throughout flowering instead of increasing it - the plants are happy with the concentrations they are getting, so rather than feed stronger i feed the same, but more often.

works for me

*up ur ph in flower too m8 - could be ur problem tbh as the minerals ur plant needs atm are only available in lower concentrations below 6.
6 - 6.5 is spot on & ur plants will thank u for it

[weedies]

Originally Posted by Num

wouldn't worry about pk levels if ur using a good feed - just make sure u clean out proper between changes as any sediment can be stirred up when u refill & cause ec way too high & nasty waste salts in the fresh feed!

What is the proper way?

After each batch I run this (top with the rocks) in the "rain maker" in the shower with some bleach. I guess I missed the part about cleaning it out proper between water changes? I do flush some tap water before I dump out the res and then clean the res with bleach also. Am I missing something stupid?

Thanks


Any other ideas? If this water change with fresh nutes does'nt work I don't know what will. This happened in my last batch, but I thought it was because of root rot. These have massive roots so I know thats not the problem this time....

[weedies]

oh, and buds stopped growing when this happened

[Num]

leave the bleach m8 - not good.
if u must use a steriliser, use hydrogen peroxide.
u can get it online at most growshops or from local pharmacy (cheaper)

if u suspect root problems u should be adding a little peroxide to the res - works wonders

i empty my tubs out, refil with fresh water & empty again.
u could check the ec of the waste water to see wht's going on.

tbh i think u just have a normal mg deficiency & a dose of epsom salts will sort it.
don't expect the damaged leaves to recover tho.
but back off on the feeds, raise the ph & stop using bleach lol

[Ganja Guerrilla]

tbh i think u just have a normal mg deficiency

that IS NOT a magnesium def, 2 of us see a potassium def, and I dont see how backing off the nutes and adding epsom salts will address the obvious def. going on here,

tbh i think u just have a normal mg deficiency & a dose of epsom salts will sort it.
don't expect the damaged leaves to recover tho

If it were the start of a mag def. the leaves would recover, they do darken up again between the veins

wouldn't worry about pk levels if ur using a good feed -

Always worry about your PH, its the most common issue with growing weed...now this IS a pattern to watch for, we see it daily here on the board.

Adding small amounts of epsom salts wont hurt your plant, however if I were you I'd wait for a hydro head to get pertinent info on max nute ppm's, hydro nutes, PH res temps etc etc

[Num]

i said PK not PH

all my grows are hydro so pointing out what i see with my own eyes.
all grows are different, but most probable cause of his problem is overfeed & nutrient lockout due to too low ph.

whatever - im not arsed, my plants are sound

[Ganja Guerrilla]

I didnt say your arsed & my mistake I thought your PK reference was a spelling thing (PH)

we just dont want to see his plants get hurt further do we? and you did post some sound advice

but most probable cause of his problem is overfeed & nutrient lockout due to too low ph

but you keep saying hes over fed and now you throw in nute lockout from low PH a contradiction to overfed.....thats the plant starving! and thats what the other dude and I posted, its starving..but you say PH is the possible cause... hes posted his PH was 5.5 and is now 5.9 both in an acceptable range & not locking out nutes.
hes posted his ppm are 1367 another hydro guy here on the board just posted his ppm's are ppm=2020 again I dont do hyydro but there is a discrepency here and it seems to be feeding related NO?
wait for a hydro head tie breaker dude, I dont know enough about it, but I can read a plant and ferret out issues with logic or do a search and find the optimum ppms to see if you are infact feeding them enough

[Chronic*Q('-'Q)]

If you add too much Mg doesn't that also interfere with K uptake, especially in acid soils?