First Timer Bubblin' Hydro: School this Newbie!

My grow room is a closet, I have a good filter and fan but can only run the ductwork to plastic tubing that fits through the crack under the door.

So yes the air is recirculating from the room but also I suspect the closet is pulling hot air from the attic through the ceiling. That kinda sucks, even if I wanted to deal with that (don’t) I couldn’t in the middle of a grow.

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Just dropped some money on Grove Bags. With what they charge for shipping I expect perfection.

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I use them and love em. I will say you need to make sure your drying is on point or you’ll get mold. Had it happen unfortunately. Going forward, I will burp the bags once a day for the first few weeks and then leave them. Still more convenient than jars.

@HappyHydroGrower @Not2SureYet

When do you guys start to flush the nutes out of your plants, if you do, and for how long?

I’ve heard two weeks for soil and five days for hydro, looking how the process has worked for you.

I’m looking for a younger energetic buzz so I’m kinda thinking once I see the slightest amber I’ll flush 3-5 days then look to harvest.

Thank you.

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I’d say make sure you’re looking at the trichomes on the bud and not the small sugar leaves surrounding the bud. The little sugar leaves will amber up sooner than the buds will. I am at week 6 flower currently and have some amber on the sugar leaves, yet the buds are still clear… just an example.

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Cool stuff thank you. I was just reading your grow journal, and I see you’re in soil so your flush will be different.

I’ve four plants and they’re all different. They were planted together and all popped within a day or two but still, it should be interesting. There’s only two different strains but even the same strain girls aren’t that consistent, mostly due to my influences I’m sure.

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I am in coco and only do 3 or 4 days. I have seen others in the 2 week range for soil. This may be worth a quick read

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It is worth a read. A while back I asked if we were fattening pigs or training athletes. Seems to me the former wants to flush and the latter doesn’t.

I want to feed my plants ‘just right’ but don’t have the repetitions to know how to yet. I have yet to rectify why my ppm count is always low while there is tip burning and clawing.

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One upside of the AeroGarden is the girls can get as close to the lights as they can take. These colas are actually touching the LED panel, but there is a plexiglass screen and almost no heat. I don’t see any burning or other negative effects, but I’d rather there be some space.

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I figured out what’s lowering my pH. It’s the law of electroneutrality. There’s stoichiometries and coordination.

Northern lights x skunk

Ppm was low under 400 and these girls are due for a flush but no time so I made what I call a 12345 top off:
1 ml Armor Si
2.5 ml Cal/Mag
3ml FloraMicro
4ml FloraGro
4.5ml FloraBloom

Per gallon. That’s essentially 25% strength for their time & place. Ppm was 791 for that solution which I had chilled to 64 F. About 2/3 gallon filled left basin and basin right took most of the rest

Blue

This basin was flushed Sept 2 and the girls were fed 100% for their time & place on the schedule. That ppm was 1320 at the time and 1140 two days later. The pH plummets pretty regularly in this basin. I’m always trying to get it up with a basic top off.

There is still droopiness but not everywhere. It’s a sign that growth may not be optimized but it’s occurring. I’ve been chilling the water I top off with and managing the pH, pruning a few mature fan leaves and not much else.

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This is before and after some mild defoliation yesterday:


It’s not even that visible but I do see more light coming thru the bottom left after. Most of my chopping was there, removing undergrowth and thinning the center.

It wasn’t so much that leaves were blocking the light as a need to keep air flowing. We’ve had cooler weather and my humidity has remained in the fifties which isn’t too high with proper ventilation. My ventilation is adequate if I defoliate.

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@HappyHydroGrower says I’m lucky managing my pH by color and he’s right. The entire veg cycle I was off on my color assessments and I have to remember when reading forums soil growers want different pH’s that I do in hydro.

But pH’ing by color gives me more intimacy with the plants and the process.


The left test tube is fine but the right one is a red alert. Basin right is too acidic. That’s been the trend during flowering.


In a move I learned in this forum attributed to @dbrn32, the left tube is from a gallon of tap with 5ml Armor Si and .75ml pH down. 2 cups of that and my right basin went from red to the more healthy yellow/orange on the right.

I suspect this move towards the acidic has to do with the uptake of potassium but I’m not sure of that or what to do about it.

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You are probably correct. I have seen other hydroponic growers mention using my method for adjusting ph has caused some problems. You can maybe try a dedicated ph adjuster that is potassium silicate and also has potassium carbonate. I think gh ph up does. I’m not sure this will totally stabilize ph, but it may help. I don’t grow in hydroponics, but I think there is always a level of maintenance to ph of solution over time.

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You’re doing a mighty fine job!! :+1:t2:
Also needs to be mentioned, like I said, not everybody has to use a PH meter to grow. For myself and other new growers, would it be ideal to use the color strips, probably not. I personally would never try it.
If it works for you, which it definitely has, go for it… :+1:t2::v::sunglasses:

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It’s a lot more work than it has to be but there’s a upside to that. Thanks.

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General Hydroponics does make a pH up but I try not to use it.

Both bottles were new and delivered after this grow started. I didn’t choose to not use pH up, it’s just that my tap water is more basic than the ideal range, my 25% nute top off is slightly less so, and my Armor Si top off slightly more so. So I have three different top off solutions I can use to raise my pH if necessary, and I use the dedicated pH down if I need to when I flush and refill an empty reservoir.

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What gets me in trouble is that pH stands for percent Hydrogen but since we’re dealing with numbers right of the decimal point lowering the pH actually raises the percent Hydrogen.

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If I use GH nutes. I use more ph down. If I use jacks. I use about 1 1/2 ml of up for 11 gallons. I forget off hand. But a little extra silica either raises or lowers my ph as well. I think it raises it though.

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The silica is very basic. If I’m making Silica top-off water, I’m mixing 5ml Armor Si into a gallon of tap water and I will add .75ml pH down before I even bother to check pH.