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no insects in sight. I used to have fungus gnats but they seem to be gone now. I also had thrips for a minute but was able to get rid of those. Any other suggestions farmers?

Hello Folks, I have been growing in this room for 2 years now and seem to be having similar problems arise. I will go a few weeks into flower and the plants will look great. Then leaves start to yellow and die around week 4. by week 6 - 8 i have plants going hermi (very little light leak...

alright folks, I am still running into the same problems that have plagued me in the past. I am getting massive rust spots all over my leaves, and now my PH is dropping from 5.8 to 4.8 overnight. I have switched nutrients to dutch master, adjusted my water levels, kept my humidity in check...

Ok I have been seeing better results with the ladies. My PH is at 6.2 PPM at 510 staying constant with a 1120 PPM drip feed. The girls are growing nicely BUT they I am still seeing a little rusting on the older leaves. new growth looks healthy with a few rust spots near the tips as the leaves...

Any idea what might be happening here? I flushed my system because I saw this deficiency (calcium perhaps?) and now have the nutes at 480 but I have no response from them(PPM and PH is stable with NO movement in either direction) and this deficiency seems like its spreading even after the flush.

@medmaneast - my floor is at a slight incline so the 4 netpots closest to the res are in the water. how far away from the net pot should the water be? Can I be in inch away without damaging the higher roots? should I top feed?(would have to be by hand) I believe you are right about the PPM...

Hello Folks, I have been working with the Undercurrent for around 1 1/2 years now and still haven't gotten it working like the Big Boys. I have had 3 good runs, one great run(my first run), and 2 HORRIBLE runs. Each time I have had major problems with the PH dropping. Some worse than...

Here is a pictures. Does anyone know what is going on here? I was about to flush and my PH started to go up. it dropped down to 5.5 and then went back up to 5.8 while my PPM stayed at 550. Should I still flush? especially considering the pictures?

i cleaned and scrubbed everything down with bio green clean before i put my ladies inside. The problem was occurring in my 8 gallon veg buckets and is happening in my 13 gallons as well. EVERYTHING has been clean since day 1. At this point I can't take my UC apart because I have plants in it...

biomaster... any suggestions as to what I should clean and sterilize with?

I had a question a few pages back and have some follow ups. I have been running super skunk for a couple weeks in veg using calmag, canna, boost, and roots excell. I always cal mag up to 200 to start everything off. I have the ppm at 480 and my PH between 5.5 and 5.9. My PH keeps dropping...

I have a couple rooted cuttings in my UC right now and they are running at 430 ppm. They aren't growing quickly... should I boost them up in PPM? When I do this the PH starts to fall and the PPM's go up automatically. Any help or suggestions would be appreciated... especially on what is going...

Thank you all for your suggestions. For now I used tap water(430 ppm... SoCal has real nice water) to stabilize my system and it is working much better and is way more stable then ph up. I am going to do a couple experiments and cut out cannazyme all together. What does zone do...

5 of my 6 plants look really bad. One is doing fantastic. They are all Massachusetts super skunk from progressive options. I'll post some picks soon.

Meter is calibrated weekly and has always been on target. So what you suggest is to just do base nutes first. When that come out reading 4.1 what should I do?

No root rot here. It's as brown as my last batches which came out real nice with no major ph problems. Water is at 67-69.

White with a little brown

Hello everybody, I am having some serious ph problems with my undercurrent and was wondering if i can get some help/guidance. My ph has been swinging wildly and i can't get it under control. I was using aqua vega a and b but every time i put b in my ph would drop from 6.0 to 3.7. After...

Not trying to jack your thread but I was wondering if anyone knew how big of an AC I should use, or knows of a thread that would help me out. I have a 7x5x7 shed with 2 600W lights. I don't want to have to wire a 220V line so the largest AC unit I can run is a 15,000 BTU. Anyone know if this...

I'm having random thoughts right now. has anyone ever tried connecting a drip system to their undercurrent system? Or even adding aeroponics to the mix? 3 systems in one... does this make sense to do in the future or am I just gettin crazy