Blueberry Auto - Grobo Grow (1st) Challenges

First grow on Grobo with Blueberry Auto. Started strong, then had some issues with brown spots and after some adjusting by grobo support, continues to have issues and limited nutes not showing much decreases (day 29). I am waiting on support today to see if they can salvage this first attempt as it doesn’t seem right. I checked PH manually and was in line, also grobo support all checked out with a day or two of it showing a bit overheating (which was resolved). I will place a digital hygrometer in there when back in town Sunday to monitor temp and humidity, etc…however inside home which is always at below 75 degrees(F) and under 50% humidity. Next step will be to grow manually side by side to see the differences, but that will be down the road when not much travel scheduled.

Here are some pics of the grow so far (any recommendations or checks would be great)


Cal/mag issue is what that is

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If your at your 5th node, consider topping

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Thx. What sucks is I’m away on vaca and have a buddy taking care of it. I have nutes at home, but also asked grobo support to let me know what to manually feed it if it is not taking when flushing the water…bottles seem unused for the most part (for roughly 30 days). Not quite sure how much is supposed to be used. I do have some revive and voodoo juice at home I can have him go get. Any guidance on amount to manually feed or wait for grobo to try adjusting again?

I was going to before I headed on vaca, but wasn’t sure if I should based on the conditions so was going to wait until I return sunday so I can watch her closely from there.

As long as you’re on late vegetation, no problem :+1:

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Could be a ph swing or just not enough cal/mag for the plants liking… if you could have her flush maybe try the revive and then try and add cal/mag…

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Looks Like the Team and Support got you covered:


((#SomeReads)): :open_book::wink:

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If you are using revive to correct a deficiency, use 5 ml per liter (so 15 ml for the 3 gal res). If you are using as part of a regular feeding schedule, then it’s 1ml per liter or 9ml for the 3 gal res. I use as part of regular feed schedule.

Also, I would recommend “recharge” as your beneficial bacteria over voodoo!! I’ve used both and recharge kicks voodoo juice’ ass hands down :+1::v::joy:


Just wanted to pop in and send an update and thanks as rebounded nicely after adjusting the tubes from nutes and now on 1st week of flowering. Take the lesson this one one and will go away from Autos to hopefully make the most of the yield moving fwd. Not sure how much this will yield, but hoping 1oz at a min.

Thoughts/Feedback on how it looks for a week or so into flowering with 3 weeks left?


I trimmed her up after the 1st 2 pics as well…so all bud sites are now getting solid light…


Very Good! :+1::eyes::seedling:

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Some updated pics with 3 weeks currently scheduled for flowering. Stretched quite a bit, more than everyone had anticapted and had to bend the top colas that were hitting the light and showing slight burn. Just sent in to support to check levels and schedule and also give me feedback if 3 weeks is recommended or if we should adjust. Also going to post in another forum that is asking for autoflower pics…feel free to share feedback, comments, etc.

Thanks all!


Let us know what they say about your ticket cuz I was going to say something seems off just a bit- She’s got plenty to drink ya? Leaves seem droopy but doesn’t look like pH or a cal/mag deficiency. :thinking:

I’ll bet rh is off

Probably should have mentioned I had to check when I got in last night (late), she was sleeping so normal to look a bit down. I know, I shouldn’t be messing with her, but had to check it out after being gone a week.


Feedback from stephen is all looks good…having him confirm rh, per your feedback, if he comes back with something else I will keep you posted.