Hello there anyone have any ideas what this could be? Running undercurrent system, ph 5.7 to 6.3 feed at 1.4. Under high powered led at first I thought it was light stress but now not so sure. Ph keeps dropping quickly
Advice needed
- Thread starter Mrme
- Start date
1.4 EC or ppm
What nutes and strength?
Old grower or new ?
And welcome aboard
What nutes and strength?
Old grower or new ?
And welcome aboard
- Thread starter
- #3
No clue of those nutes, so can't help there
Full strength calmag?
What water, tap or RO, if tap what's the ec/ppm
How's yer water look, something is outs wack for sure, any goopies or chunkies, water temp , good bubbles
pH should be lower than 6.0 usually
Full strength calmag?
What water, tap or RO, if tap what's the ec/ppm
How's yer water look, something is outs wack for sure, any goopies or chunkies, water temp , good bubbles
pH should be lower than 6.0 usually
Growingasmile
Well-Known Member
From my initial glance I would assume too little nitrogen or too much, when did you last feed and how much, also are you watching ph. the whiter leafs look a bit like zinc deficiency to me too but I need more pics and info
- Thread starter
- #6
Using tap water loads of air in the pots all the time water temps between 18 and 19. Not feed any nitrogen other than eats in the a and b feed. Doing nothing different to normal other than changed to led lights and closed loop system with added co2. Co2 sitting 850/1200 lights on. Ph I try keep 5.8 to 6.0. It has done a sudden drop a couple of times all way down to 4.9 bou corrected it as soon as seen it so for no more than 12/18 hours
You going full strength of nutes?
- Thread starter
- #8
No mate about half. It’s odd as doing same as I always do but the plants are smaller so starting to wounder if I over feed or light is to strong
- Thread starter
- #9
I did think zinc myself, do you think to much light?
How far away is yer light
I'm not exactly sure what the issue is, think it's a combo of things
I'm not exactly sure what the issue is, think it's a combo of things
I'm not a co2 guy, wonder if that is contribute to the issue
But thinking maybe calmag, how much u giving them
But thinking maybe calmag, how much u giving them
- Thread starter
- #12
What calmag, brand
Light sounds good
Light sounds good
- Thread starter
- #14
How are you checking pH? If with a pen has it been calibrated recently?
- Thread starter
- #16
I have a blue lab wall mounted one that I calibrate often, just took another one there today calibrated both of them put them in tank and they read over 1.4 different yet when put them back in calibration liquid both read the same . Think the prob has had it as then ph just tap water that I know is about 7.8 and it read 6.2 so I have prob been running system about 7.4 for weeks FML.
- Thread starter
- #17
If it dries, it dies. Try using a soft toothbrush and dish liquid and clean the probe. Then submerge it in the BlueLab storage solution for 24 hrs. It may calibrate true after that, if not buy new.
- Thread starter
- #19
Yea I just ordered a new one and a pen one in case it happened again
Me thinks this is definitely your LED burning your plants. If you have a dimmer I’d adjust down and if not I’d move them further away from your plants.
