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
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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 infoHello 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
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 strongYou going full strength of nutes?
I did think zinc myself, do you think to much light?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
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.How are you checking pH? If with a pen has it been calibrated recently?
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.
Yea I just ordered a new one and a pen one in case it happened againIf 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.