Our bad @Jay_Peso hope you got something out of that little side bar. Let us know if you want it removed my man.
Hey @Russel_Richardson,
Here is the skinny on Grobo pH dosingâŚ
Every hour the system will check the pH of the reservoir, compare it to the pH range of the current recipe and either adjust up, down or report a balanced state. The system will continue to monitor each hour, adjusting if needed. Keeping a clean and healthy pH probe is key to smooth operations.
Food is dispensed every week when you do a successful drain/fill of your system. Once each water level sensor falls for your drain, then rise for your fill, the system will dose food over the next 15 minutes or so.
TLDR; pH is adjusted every hour, food is given once a week.
Cheers,
Stephen
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lolâŚitâs cool.
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Your new growth still looks good so there is hope.
This looks like a ph problem so first check your probe to see if there is brown gook on it, if so it needs to be properly cleaned and recalibrated.
And if you need directions on h Iw to do that I will post them here for you in a sec.
Next check your nutrient lines for kinks and be sure your lines are hitti ing the very bottom of your bottles.
If you canât find a problem yet check to be sure your air stone is working and send in a ticket asap.
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Sheâs not taking in nutrients through the roots so the leaves are showing a deficiency (as she takes the nutrients from there instead). Thatâs the bottom line here.
Some usual reasons for not taking in nutrients:
- incorrect pH (too high or low, either due to temperature changes or other factors)
- problem with roots (dead/being attacked by bacteria like pythium AKA âroot rotâ)
- incorrect nutrient mix (this is unlikely)
- something else in water causing a problem (also unlikely if using RO/distilled)
The first can be ruled out by checking the water that is drained with a pH pen, should be between 5.8->6.3 range probably closer to the middle of it.
The second is probably what you are facing, unfortunately⌠it can be a pain to get rid of or keep under control. You already identified that brown stuff on the roots so this is why itâs more probable than pH alone.
Did you get the roots out and cleaned with h2o2? Also soak it into the cocopod a bit, it can hide in there and come right back. After that you really need hydroguard as well as the h2o2 will have killed off any beneficial bacteria that was there (in addition to the bad stuff).
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The leaves that were already affected were already going to die anyway so thatâs going to happen, the new stuff does look alright though. But yeah itâs probably still an underlying root problem if you didnât tend to them at all. If you cleaned the machine and the probes still calibrated fine then the plant will heal and get better looking, but thatâs only if there isnât an issue with the roots, what are they looking like? Better or worse? You should try what @vegetato has suggested if it isnât better
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I cleaned the unit. I did not do the h2o2 mix. But i did put Hydroguard in the water. The roots has this brownish slimish stuff on the roots. Itâs no smell from the roots. It seems like the all the nutrients are being used. I donât see any kinks in the lines that I can tell @Bplatinum9. I did not clean the ph probes or check the calibration after I cleaned the unit because I did it the 1st time I cleaned. I did lightly clean the probes to get some brown gook that was on them off. @vegetato @Russel_Richardson
I put in a ticket. I can put another one in. They said âeverything seems to be fine, focus on the new growth.â
Quick questionâŚWhat is the normal or average temp inside the Grobro
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It would be ideal to keep it in the low 70âs if you can. And you donât want the water getting any warmer otherwise bacteria can fester around your roots which I suspect is what was happening. The hydroguard will help ward it off but wonât fix the roots, so yeah just make sure that things arenât getting worse. It might a tiny bit but if it doesnât get better after a week Iâd say thereâs an issue still. If you want to be safe do what @vegetato suggested before to cover most of your bases. Itâs not harmful in any way.
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I would just do another health check and make sure itâs still calibrated to be safe, I know itâs annoying lol
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Itâs about to go to night cycle in 2 minutes. Will do the h2o2 in the morning. I will check out the past post and do step by step. And do the health check as well
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I moved since my last grow and it was in a perfect location in the basement. Now we are in a home with no basement and my unit is next to a deep freezer. I think itâs a little higher. But I will check in the morning. Lights just shut off. I donât want to stress her out any more than I already have. Specially if everything checks out and my focus needs to be on the new growth
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I bet you thatâs the culprit then, Iâm going to guess anyway.
I just did the opposite, moved mine in the basement, lights on its 71 at the most water was 68, I have a temp gun that I use for my readings could be off a little bit I doubt by much. Youâre hopefully okay now that youâve added the hydroguard 
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If temp an issue. What should i do? Location wise. Itâs in a perfect spot. The next spot would be just on the opposite side of the room
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Yeah maybe beside a deep freezer isnât helping, try moving it to the other side like you said.
Try adding another small fan and make sure its not real close to the wall so it can breath.
Also clean the brown gook from the coco pod and under the lid with a paper towel best you can.
New spot where printer is (its by a vent thou) about to move in a few minutes
![20200525_130507|375x500]currently at(upload://kRejKPwhNDIXWqBWAUJ8f0nPUkj.jpeg)
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got it in h2o2 and waterâŚabout to check health of probes this gook built on holders. Should i clean unit again?
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Yes⌠
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