Oxygen in the reservoir is never enough
Watch out for phosphoric acid.
Humidity will be high, increase air flow.
Ph will normally increase.
All of those r from my humble experience.
A lot of oxygen makes plants suck up water and nutrients a lot faster, if nutrients r not exactly where the plant wants, it will probably raise the ph cause off nutrients absorption.
A well balanced nutrition with a lot of oxygen must lower water level without changing parameters.
Yes. Each plant has a 50L bucket. I did, that's how I started, had pretty good results actually. Bud hydro for big plants and big roots I don't like gambling with oxygen.
Nutrientchemistry is pretty nice field for engineering around with if you use super hard tapwater. Tapwater and H3PO4 are natural enemies in Terms of nutrition. (I am on coco sub irrigation/flood n drain recirculation)
Phosphate + shitloads of Calciumcarbonate with pH drift is a pretty good reservoir fuck-up.
I set my initial pH on 4,x drifts 24h to 5,x. Anything from 6 on in the res is drifting on my irrigation matt to 7,xx so Calciumcarbonate just reacts with phosphate to Calciumphosphate aaaand its gone for the plant.
I acidify first with HCl add my base nutrients (canna terra, has no calcium) add no calmag only MgSO4. (My water has 90mg Calcium, 15 mg Magnesium from tap) then i add the desired amount of phosphate phosphorous acid and let the pH drift over night. Next day i put it to 5,5 with KOH. Now it works. I tried a lot of combinations of container type size and substrate composition and its super nice.
Base ec is 0,7. After that it sits at 1,6 for veg or 1,8 for flower.
Lots of hype nutrient brands out there. Don’t waste time and money chasing marketing promises when you can get incredible results and value with jacks powders, and a silica powder for during veg.
Don’t let the res run dry… 😅
Avoid the desire to max out your light’s brightness, depending on what you have. You’ll just burn leaves and off-gas more terps so you wind up with a weaker flavor.
If you use clay hydroton pebbles in the net pots, make sure they are fully rinsed in a hot water bath and allowed to cool before use. If you skip the rinse, all the dust from them will wind up coating your roots and in your reservoir and you’ll think something stupid like your nutrient powders are being knocked out of solution somehow.
Question for you: do you get good results with jacks during flower? I had a lot of issues with them being too high in nitrogen though that was in coco.
I use master blend and it’s my first run in this dwc. I make up a concentrate then add it to the water as needed. As you can see it only uses one ml per gal of each. The analysis 10-9-19. Maybe too much N I dont know
Seeds over proven, healthy, reliable clones. I know theirs a ton of seed fans out there, but again we all have our opinions. For this coming indoor season, I'm likely going to break into some old classic seeds I've had for a few years & break into some of them, ones I've already ran. Going to throw a compound gastro pop in to the mix 35$ each & that will be my near new years or first of next years harvest.
Edit× searching for that true pre 98' female bubba kush to work with. I use to have Tom Hills & his amazing Deepchunck, but it's all but lost in my pow grow that they were taken from me in 2012, anyone know where she may be let me know. Ive got about every seed breeders seeds available for trade or whatever, cheers to all. ✌️
Too long veg time max 2-3 weeks then you flip to flower
Rarely changing water best is every week
Fuck dwc to much problems just stick to trays
Buy some powder food instead liquid much cheaper + save lots time & money
Dwc I put 4 plants in one tent and they over grown it. Only putting in one for now on. Don’t use seeds to start. Only use seed then clone off the mother. Maybe I should cut the veg for only 3 weeks.
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u/Low_Reading_8983 6d ago
Oxygen in the reservoir is never enough Watch out for phosphoric acid. Humidity will be high, increase air flow. Ph will normally increase. All of those r from my humble experience.