First Timer-Jack's Classic 20-20-20 in DWC Hydroponic?

Hi everyone-

First time grower here and I just ordered Jack's Classic 20-20-20 all purpose and blossom booster dual from here http://jacksclassic.com/ I purchased this intending to use soil however I decided to go with DWC which seems alot better. I wanted to know if anyone is familiar with using both these fertilizers in DWC?? Any help would be greatly appreciated, thanks!

jpnspec said:

Hi everyone-

First time grower here and I just ordered Jack's Classic 20-20-20 all purpose and blossom booster dual from here http://jacksclassic.com/ I purchased this intending to use soil however I decided to go with DWC which seems alot better. I wanted to know if anyone is familiar with using both these fertilizers in DWC?? Any help would be greatly appreciated, thanks!

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bump...anyone??

jpnspec said:

bump...anyone??

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yes I have used it also but I stopped for while . but I will start using i again after my clones get a little bigger . you need to tell me how old and big youre plants are . are the internodes semitrical or alternating. and do you have a ppm meter.

plants are clones, approx. 2 weeks old. i dont have a ppm meter, I was planning to start out very light, maybe 1/4 as suggested. I wanted to know if there was anything i needed to mix with to go hydro?

jpnspec said:

plants are clones, approx. 2 weeks old. i dont have a ppm meter, I was planning to start out very light, maybe 1/4 as suggested. I wanted to know if there was anything i needed to mix with to go hydro?

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no just as directed warm water . I used a planters jar with hot water from the sink and add the nutes to it and shake for a min and then add to the rez and stirr the rez with your hand

excellent, thanks for the tip!

So what PPM TDS would you run with jacks (in veg state)?

just be sure you mix the nutes well, you dont want your lines clogged. I had an issue with that and it was a GIANT pain in my ass.

So what PPM were you running?

Anyone have any more info on Jack's?

Been looking for something simple besides the 3 part. Hear all sorts of mixed emotions about the GH series nutes and the others. I have yet to hear anything bad about Jack's.

Do you guys just follow the directions on the container or do you guys have your own measurements that you guys use?

This is for a DWC setup as well.

So as others have asked. What ppm/tds you guys runnin?

i don't think jacks will work well in dwc. I've tried a product with the same nitrogen formulation as jacks (plant prod 20-20-20) and growth was soooo slow that i called it quits anxious enough i transferred to coco. jacks has a lot of urea as nitrogen and the nitrogen cycle to break down urea is not efficient in a very passive hydro system like dwc. It works very well in ebb n flow with beneficial bacteria and porous medium to convert the urea into useable nitrogen. if you have good results let me know!

Don't know about the regular Jack's in hydro, I use the hydroponic formula and while im only on grow two, I don't think it's my limiting factor.
Cheers.

Sent from the Rollitup App!

Jack's classics 20-20-20 is meant to be used in soil. It leaves out all the calcium and provides a great deal of the N as urea and ammonium.

For DWC, Jack's professional hydroponics with calcium nitrate is what you should be using. With that, most of the N is nitrates, provided mostly by the calcium nitrate.

Im currently using jacks 20-20-20 in a 5 gal dwc setup and she is growing fast but i had some calcium and magnesium defficiency on week 3 and added N-Cal-Mag and she is turning around now. I have been using 1/4 tsp Jacks and 1tsp N-Cal-Mag per gallon (distilled water 5ppm) and am at 195ppm total. Ill let you know if i have any problems as some have told me jacks is going to be difficult later down the road wereas others have said its fine

As long as it has all your Micro nutrients all should be good. Not TOO familiar with Jack's nowadays, but if you use the regular 20-20-20 for dirt in hydro you will most likely have to supplement with a decent micro blend at some point.

What's wrong with GH- FloraNova Bloom? (Pricey?)
I blew plenty of grows out of the water using nothing but Bloom from start till finish. I started adding P/K Liquid KoolBloom in flower. You don't even need the Liquid KoolBloom to pull off a decent grow.
Adding Rapid Start for roots, and Floraliscious+ for everything else, Makes A Top Quality Product grown in hydro.

You can use FloraNova Bloom from GH as a 1-Part, Stand Alone Nutrient from start to finish in Hydro and grow Good, Healthy Plants.

That's what I was trying to get across..
Lol.

So ive been using jacks 202020 since i switched to dwc i started one plant just to see how it went and she exploded i immediately chucked dirt lol.
So i know jacks is some strong shit so i definitely didn't wanna follow the recommend dosage so i made my own. I mix 24gal of water and i mix only 1tsp of jacks 202020, 80ml of cal-mag from EH and then only 14mls of bio root from GO then for keeping the water clean i throw in a half tsp of mosquito bits. I put my ph to 5.5 and change the res (bucket) once a week and i let the oh just casually raise by it's self which only ever gets to 6.1.
The big plant is 4 weeks and the rest are just starting there 2nd week now everything is looking good up until the other day i started noticing this on the tips my first thought was it was nute burn.. But with as little of the jacks im using it doesn't make sense i also wasn't using cal-mag up until last week.
I use city water which comes out at 226ppm after i add all my nutes and ph it obly raises the ppm to 446.
Any advice would be helpful i included pics. Sorry about the shit quality pics lol

Still using jacks?

I’m on my first run with Jacks and its the Bomb. So far! I had some mag def. a couple weeks in but added mor mag and cleared right up. Only problem I’m having in rdwc is the plants are huge! auto flowers that normally get around 2ft tall. Now 3ft in stretch. Back one. I can’t get around in 4x4 tent to thin out. So I’m just letting them do there thing this time. They were started in dwc and had them under control till I switched them. I’ve never got this level of grow with any other ferts. Only 2 years indoor growing wise. So jacks is not just for dirt. It’s doing so well I don’t know if I need micros or not. Have bioag full power and or fluvic on hand if I decide to. Another thing I can say is I used 5gallon buckets and should had used 8. I would not do photos in 5 because you would run out of root room before flower, my opinion. 4in net pots seem fine as well. Im also just using filtered city water. No water change just add and go. I heat a pan of water and mix individually then add mag to jack and dump in res to mix then turn on pump and let run for 5 min or so then add the N the same way. You can mix all then dump in just make sure you do jacks first mag 2nd and n last but give time between mixing. I’ve been adding silica before anything goes in water bucket. It will clump if you don’t. Ph after all mixed well. Silica will raise ph! I stop using it first sign of flower. Some go all the way through. I have also been using Flying skull z7 enzyme cleaner with great results. Keeps it nice and clean. No slime! Only other thing I can think of is lowering the nitrogen back some. But I’ll let ya know after I figure that one out. So to your question I give jacks a Hell yea.. can’t wait to try outside.
Here’s a pic. One in back is taking over. Little light stressed. Both Lights at 150 right now. Off topic but Here’s a comparison of geeklight 320 with Cree reds and Samsung H. I had them build for me a couple years ago against optic Slim, With same. Both have there pros. Hope this helps some. Please let us know what your findings are. Cheers.