Sick plants HELP!!(no clue, possibly two kinds of deficiencies?)

lurkmaster

lurkmaster

Well-Known Member
So, a few days ago, my plants started getting burnt on the tips of the leaves, I didn't think much of it, but it has been getting worse and worse.

I have been using nutrients very sparingly (stock AG nutrient tabs in half tab doses).

My pH is around 6.0

Have been using nothing but pH adjusted Ozarka spring water.

I flushed my res and put new water in a few days ago, and they haven't really started looking any better.

Does this mean they NEED nutes? or is this really bad nute burn?

I popped a half of a tab into my res, and I got a red blinking "ADD NUTRIENT" and "CHANGE WATER" light, so I freaked out and flushed my res asap and put a lower concentration of nutes in.

Could it be that my CFL is too close? its about 3-4" inches away from the plant.

I have been trying to ride this out like previous problems, but it just looks like its getting worse.

My roots look nice and healthy though.

Also, my plants were planted 1/28 and 1/31 so they are roughly 2.5 weeks old.




Any help would be greatly appreciated.
 

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jahtrip

jahtrip

Well-Known Member
have you already began fertilizing those baby's??
you defenatly shouldnt!!! u wanna wait till they already got alot of roots and a bunch more leaves...
if you wanna give them anything, give them a root stimulator that doesnt have an npk.... just a simple good root stimulator (with an antistress agent in it if you can find..)`
and i always start with my light about half a meter away and bring it down over the next 8 days..
if you went from seed... it happens that the seed itself isnt so great anymore... i grew buddha sister once that looked like salad for the few month but as time passed it started to look nicer and nicer to end up like a proper cannabis plant and not your good ol iceberg lettuce ...

anyway good luck with those ....
peace out
 
lurkmaster

lurkmaster

Well-Known Member
jahtrip said:
have you already began fertilizing those baby's??
you defenatly shouldnt!!! u wanna wait till they already got alot of roots and a bunch more leaves...
if you wanna give them anything, give them a root stimulator that doesnt have an npk.... just a simple good root stimulator (with an antistress agent in it if you can find..)`
and i always start with my light about half a meter away and bring it down over the next 8 days..
if you went from seed... it happens that the seed itself isnt so great anymore... i grew buddha sister once that looked like salad for the few month but as time passed it started to look nicer and nicer to end up like a proper cannabis plant and not your good ol iceberg lettuce ...

anyway good luck with those ....
peace out
Click to expand...
Yea at like 2 weeks I gave them 1/3 of a nutrient supplement.

Thanks for the quick response..

so you think this is really bad nute burn?

I really don't think thats what the problem is.

Because my older plant looks worse.

My roots are about 10" long, girth out of water makes them about 1/3" thick. (not each strand, the entire root structure)
 
Calijuana

Calijuana

Well-Known Member
lurkmaster said:
Yea at like 2 weeks I gave them 1/3 of a nutrient supplement.

Thanks for the quick response..

so you think this is really bad nute burn?

I really don't think thats what the problem is.

Because my older plant looks worse.

My roots are about 10" long, girth out of water makes them about 1/3" thick. (not each strand, the entire root structure)
Click to expand...
\\



it looks like nutrient burn to me
 
lurkmaster

lurkmaster

Well-Known Member
Wow, I checked the pH of my reservoir and it was ~6.5.

I added 3 drops of pH down, hopefully that will drop the pH in a few hours and I can add 2 more drops.
 
U

unity

Well-Known Member
lurkmaster said:
Wow, I checked the pH of my reservoir and it was ~6.5.

I added 3 drops of pH down, hopefully that will drop the pH in a few hours and I can add 2 more drops.
Click to expand...

Yeah mate, I would do a complete res change and drop the ph to 5.4. Let it climb back to no more then 5.8 Check the ph 2 times a day at least, until it stabilizes. I check mine twice a day regardless, been down that road ....
Maintain the Ph @5.6+- When you add nutes, no more then 300-400ppm (.7 conv.) until they look healthy.

Unity:hug:
 
jahtrip

jahtrip

Well-Known Member
you gave seedlings fertilizer... and your ph is at 6.5 for a hydro set up ....
ideally you shouldnt fertilize..... and your ph should start at 5.5-5.7 and slowly go up as it goes further into the flowzering phaxe to 6.5 at max......
im 97%sure its nute burn and your ph is too high .....
im sure youll eventually figure it out though :)
peace out man!!
 
lurkmaster

lurkmaster

Well-Known Member
jahtrip said:
you gave seedlings fertilizer... and your ph is at 6.5 for a hydro set up ....
ideally you shouldnt fertilize..... and your ph should start at 5.5-5.7 and slowly go up as it goes further into the flowzering phaxe to 6.5 at max......
im 97%sure its nute burn and your ph is too high .....
im sure youll eventually figure it out though :)
peace out man!!
Click to expand...
Well, first off, the pH of 6.5 was an accident.

Secondly, I didn't think having 2 sets of nodes coming off my main stem lumps my plant into the 'seedling' catagory.

That looks like it was the sole problem.

pH is at 5.8 now and I gave my plants a little haircut yesterday and they look extremely happy and healthy now.
 
jahtrip

jahtrip

Well-Known Member
awsome ..... thats what you wanted right....
and what would you call your plants if they arent seedlings at this point??? clones?? babys... plants...
i guess i just got use to saying clones for when they havent rooted yet... seedlings once they are vegging and flowering marijuana when its flowering...(but hey no one said i was a scientist) so as long as the bud grows and people around love to smoke it ...
call it whatever you want at whatever stage... itll still end up in a pipe at the end of the day..
peace out
 
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