What's wrong with my BABY?? she's sick...
- Thread starter pftek
- Start date
can you get better pics... look like many problems... maybe nute burn with bugs??? need better pictures and alittle more info....
CannabisDog
Member
What kind of system are you using? In weeks 4-5 of flowering you might want to up your ppm's to about 1200 or so. Flowering plants need a lot of nutrients in these weeks of flowering. Have you checked for bugs?
pftek
Member
i haven't seen any bugs lately. i used to find tiny white aphids.
the ppms aren't really going down... does that mean the plants aren't eating? I haven't really added any nutes since the start.
CannabisDog
Member
When was the start? Most grower change there nutrients every two weeks. You may also want to top up with fresh water and every other day some nutrients. Plant use more of some nutrients this others. Have to replace the ones that are getting used up. A change out every two weeks restarts things.
from ur pics the buds look nice and u should expect to see some leaves like that... if everything is growinm good i wouldnt worry to much what strain is it looks like a fast one.. u may try adding cal mag. i start with 0ppms and up it to bout 80-100ppm of cal mag before i mix my nutes.. if it were mites u would have webs by the time ur leaves looked like that...i like to see my leaves changin a few wks in flower, slowly...its just on the bigger ones and the rest have yellow tips???? if so u should be fine
Looking in the background you can see burnt tips so they are burnt in some way,id say flush for 24 hrs then refill with base nutes at 600ppm to be safe and how much calmag are you using?
Need more specs.
Is also take a look at that lower growth cuz looks like some mite action goin on,take a loop to the back side of the leafs .
Need more specs.
Is also take a look at that lower growth cuz looks like some mite action goin on,take a loop to the back side of the leafs .
Hydrofarm420
Member
what kind of meter are you using. Im not that experienced with hydro myself as i just recently switched but ive seen 2 different model of hanna meter read completely different. That looks like a pH problem as i've had those exact symptoms before and it turned out my pH was hovering at 4.7 when my meter was reading 6.1ish...and this is minutes after a calibration. Using a bluelab gaurdian now and havent had any probs since. Also kinda looks like root aphids but they are less likely in dwc.
looks to me like Ph problems and a bit over fertilizer ...
lots of good advices been given,, what best is give em a good flush and start your nute program slowly until they are strong enough to do full strengh ... give em a bit of time as well,,
maxibloom will burn you plants if you over use it ( and almost anything else ) ... look like some of the ladies are getting some heat stress too,, the buds are getting burn from heat ....
how close is your light on these and whats the ave temp day time ???
lots of good advices been given,, what best is give em a good flush and start your nute program slowly until they are strong enough to do full strengh ... give em a bit of time as well,,
maxibloom will burn you plants if you over use it ( and almost anything else ) ... look like some of the ladies are getting some heat stress too,, the buds are getting burn from heat ....
how close is your light on these and whats the ave temp day time ???
pftek
Member
brilliant. My temp is usually pretty good 72-75. Maybe the lights are too close... it is air cooled. I'll check again. And I'll also bring my PH pen to store.
maybe I should MOVE on from maxibloom... i thought it was a complete program... I never have this many problems in veg.. strange. In veg my plants look SUPER green and healthy. But one I get 4-5 weeks into flowering always some freaking problem.
maybe I should MOVE on from maxibloom... i thought it was a complete program... I never have this many problems in veg.. strange. In veg my plants look SUPER green and healthy. But one I get 4-5 weeks into flowering always some freaking problem.
if your temps are around 75 then your light is too close, could be bleaching due to that ....
if you can, recalibrate ph pen, its not that hard to do or you could bring it to the hydro shop if you dont know how ..
you can use maxibloom, but dont ever follow the instruction on the bottle or bag the first day at full strengh, always start out slow and see how you ladies react to it , then up or down the doses as you go ...
cheers,
red.
if you can, recalibrate ph pen, its not that hard to do or you could bring it to the hydro shop if you dont know how ..
you can use maxibloom, but dont ever follow the instruction on the bottle or bag the first day at full strengh, always start out slow and see how you ladies react to it , then up or down the doses as you go ...
cheers,
red.
Looks like calcium is locked out to me and there's tip burn.
What's your base water source?
Tap, RO, bottled?
RO and distilled will allow Mg and Ca defs, and pH will cause lockouts
Ca gets locked out above 5.7 and Mg is locked out below 5.7.
I usually let my res drift between 5.6 and 6.0 over the two week course between refills so lockout is minimized.
What type of meter are you using to measure your ppms?
Problem with ppm or tds is it's a fucking arbitrary number which varies between manufacturers. Some use a 0.5 coefficient and some use a 0.7 coefficient so your conductivity (the real measure of concentration) could be between 1242uS and 1,740uS.
1,700uS may be too much for that strain.
I never exceed 1,500uS, soil or hydro.
What's your base water source?
Tap, RO, bottled?
RO and distilled will allow Mg and Ca defs, and pH will cause lockouts
Ca gets locked out above 5.7 and Mg is locked out below 5.7.
I usually let my res drift between 5.6 and 6.0 over the two week course between refills so lockout is minimized.
What type of meter are you using to measure your ppms?
Problem with ppm or tds is it's a fucking arbitrary number which varies between manufacturers. Some use a 0.5 coefficient and some use a 0.7 coefficient so your conductivity (the real measure of concentration) could be between 1242uS and 1,740uS.
1,700uS may be too much for that strain.
I never exceed 1,500uS, soil or hydro.
hazydreams
Active member
im going to take a shot in the dark here and ask when is the last time you checked the calibration on your PPM pen. the reason i ask is that you are exhibiting some nute burn on the serrations at 870ppm which seems low depending on the conversion factor used. this is not the only symptom being exhibited tho. just wondering.
pftek
Member
I use Tap water.
Measured the water at 48 ppm. and 6.5 PH. .5 conversion.
My ppm was off by 40 or so on test solution (solution =1382. ppm read 1420) So I recalibrated it. PH was checked and matched PH calibration solution exactly.
I flushed everything. Currently adjusting PPMs and PH.
Had it at 1.7 EC prior to this.
Measured the water at 48 ppm. and 6.5 PH. .5 conversion.
My ppm was off by 40 or so on test solution (solution =1382. ppm read 1420) So I recalibrated it. PH was checked and matched PH calibration solution exactly.
I flushed everything. Currently adjusting PPMs and PH.
Had it at 1.7 EC prior to this.
I'd back off the nutes a bit and allow your pH to swing more between res changes.
Hopefully, that will solve yo probs. I hate sick plants.
Hopefully, that will solve yo probs. I hate sick plants.
