I’m shocked! I thought the kratky wouldn’t grow nearly as fast as the one with the air circulation water system. Thank you for stopping me from wasting time and money on pumps and electricity

The top roots are called air roots. Too much bubbles can cause the water roots to slow but in longer grow time plants dwc will catch up and surpass. Lettuce grows in short spans especially indoor and hydroponically so they do well in kratky, low maintenance setups. I run my pumps at the same time as my lights and my 5 gallon bucket dwc is growing basil, tomato and watermelon 2-5 times faster than my soil comparisons.

Your channel is really really useful and so well done. No nonsense- you just get to the point and your experiments are really thorough. I'm trying hydro for the first time ever, after decades of soil growing. I'm not getting around so well after cancer surgery and this seems like a great gardening option for folks with limited mobility, like seniors. Thanks for the inspiration!

I greatly appreciate your testing things, the results were amazing and unexpected !

Thank you for showing us this comparison. I'm starting out with Kratky and am happy to know it works as well, if not better than, DWC. I'd love to see a comparison on fruiting vegetables as well!

Your test produced some interesting results. Its amazing how the roots adapt to the different environments. The results of this test give us a better understanding of the plants oxygen needs and how it develops to achieve survival. I very much appreciated this comparative test on video.

Trying hydroponics for the first time this week and this has been super helpful. Thank you

Excellent experiment! I grow Kratky and was thinking of experimenting with DWC. But you covered it. Thank you.

Great experiment, since root size with Kratky can depend on container size and the amount of nutrient drop, using 5 plants in a 5-gallon bucket might create competitive growth and nutrient use that would make bigger lettuce heads.

Thank you for doing this, this is a great low-cost method of hydroponics that I am absolutely going to do myself.

Thanks for making this great video, well done experiment, love the side by side comparisons!

The difference in the roots is super interesting. Explains a lot. Everytime you mention disturbance I think about Star Wars and the Force 😊

Excellent video! Thanks for your effort on this experiment.

Great experiment and great results! Bravo!!

This answers my earlier question to you on why my the roots of my cherry tomato cutting keep dropping off and rotting. I cut some of the roots off and changed to the kratky method and it began growing roots and leaves again!

Thanks for sharing that experiment. I truly learned and understand each method better now.

Hi Khang. I have been enjoying ur videos for a few years now. Thank you once again for all ur informative videos. As for this experiment, my opinion from my experience is the dwc using rockwool and peat pellet is that they are so saturated with splashing water that make the lettuce plant struggles at the seedling/young stage. Once the water level from the container drop enough to not get saturated by the splashing water, the plant will start to thrive. And i also think there is a relation with the water consumption from each type of plant. Lets say dwc bok choy vs dwc lettuce. Bok choy intakes more water than lettuce so it does not matter that the rockwool or peat pellet is wet from splashing water. Now as for dwc lettuce vs kratky lettuce...they all touch the water at the beginning thus they all get saturated. Then...wich one will have a dry rockwool/peat pellet first as water drop? I am no expert. I just want to share u my experience as i once had to ask myself why my kratky lettuce grows better than my dwc in a 30 days frame. U should try dwc lettuce in only clay pebbles without rockwool.

Kratky, what an amazing method!

Great experiment ya done here. Kratky works super well no doubt. Lettuce is easy to grow so not much needed for them. Would like to see this same experiment done with tomato plants.

Great experiment. On the Kratky lettuce, it appears that the 3 plants in the 5 gallon bucket produced more than 3 times the amount of lettuce than the single plant in the 1 gallon container. Please confirm if this is the case. If it were the distance from the light, I would expect the 1 gallon lettuce to look leggy which it did not. What would cause this since in both cases, there were plenty of nutrients/water left. I look forward to hearing your response. Thank you.

Great experiment, thanks for sharing with us.

Pretty cool to see the differences, and to see how it didn't really make the end product better. The KISS principle strikes again!

Thank you this was very informative I'm considering this because I've had a double lung transplant and I can no longer mess with soil

A great experiment indeed💚👏 Congratulations po.. Happy planting. Happy growing More blessings to come😇

Its a very good experiment. Keep it up. Im excited to see more

A very cool experiment. I'll always add an airstone though, especially for longer growing plants.

Thanks for recording this experiment.

I will recommend you to keep doing more research on this topic !!

Great experiment with the two methods. I'm attempting Kratky at the moment

Thank you so much for this demo. Very well done. I learnt something very important to air pumping vs still water with Kratky. Also its still cheaper to do kratky, saving electricity. It would be interesting to compare taste because the more green (healthier) the better taste.

Hi Mr. Khang, i'd like to know by any chance did you conduct the weight comparison between the 2 experiments.? More informative video indeed. Keep it up!

What temp. Is the grow tent kept at for the lettuce. Great experiment. I love those kratky roots. Almost like a birds nest. Take care. Thanks for videos.

Your narration is incredible 👏

That's interesting. Every other DWC vs. Kratky had the DWC growing faster and the root systems always much denser.

Great video. Thanks for sharing. I’ve made up my mind thanks to you!

Thank you for this video excellent information for a beginner.

excellent video! Blowing all preconceptions out of the WATER.... haha.. So air pump causing more oxygen and circulation is not a guarantee to a better crop, at least on lettuce. I am going to be trying cherry tomatoes on kratky, it was a real pleasure to see you had the exact same nutrient that I have ordered - Arogarden - that's the only one I found that's one simple container to measure and pour in. Also, one could do with less height on the container with Kratky, as it hasn't used that height, roots are not even 1/2 way down, so thats an eye opener when deciding what container to use. You have clarified so many things for me that I can't even list them all! Very impressive video. Just what I was looking for!

Great experiment! Try weighting the produce!

They all look very similar. Good experiment

I have used the aero garden solution as well. Their 3 pod system is actually less then a gallon and I have the 6 pod system that is close to a gallon and on the bottle of the aero garden it suggests 2 teaspoons for the 6 pod one gallon system with that Same metrics it would appear that 10 teaspoons would be good for for the 5 gallon system however many recommend using much less with new plants but I’ve never had a problem when I used the full solution on young plants in the aero garden. I thank you for the demonstration, I love the large bucket would be super good for some large plants. If your plants are growing well with much less fertilizer solution, I might cut back on the fertilizer a little as well.

Wow nice lettuce Thanks Khang Great video 🙂

Ph is extremely important on what nutrients the plants can uptake!

thanks thoroughly enjoyed your watch..

Thank you for another informative video brotha. I am new to hydro and tried to do the same experiment with my lemon tree seedlings. I started two months ago and my seedlings haven't died, but there has been no growth all. Do you have any idea why they are so stagnant?

I have to say I am so happy I found your channel a little while ago. It/you have helped me so much with things I just didn't know, being I am pretty much a rookie at gardening/growing veggies. I am hopeing you or anyone can help me with this. You made a comment you will have lettuce for quite a while, well I don't seem to have much time with my lettuce after cutting down. It goes very limp almost soft looses the crunchyness in 2-3 days. Is there a reason for that maybe I'm doing something wrong possibly?? Thank you in advance for any help you can give me.

thank you so much.great experiment!

Another excellent video Khang! You've inspired me to start hydroponic growing.

Late here but glad i watched...THANKS !! Where'd ya get the black buckets ?

I believe the DWC should maintain high water level, with floating raft being the extreme. Advantage is many different age plants in the same system. Also, the air flow may lower water temperature and possibly react with some forms of nutrient to change pH or availability of difficult nutrients like iron.

Great video! Thanks!

"Expert" is a relative term! 😁 leadership changes with perspective

What an informative video. Thanks a lot. I think maybe there is algae on the small dwc due to the size of the leaves and their transparency. Since they are smaller than the kratky ones, and much lighter, there is more chance for the light to pass through down the container.

Thanx for the vid! I learned quite a bit. I have a couple of questions though. Have you considered trying to have the air pump on a timer? Or is it necessary for it to run all of the time? Lastly, would your light kit power a solar pump? Thank you.

Leave more gap between water and net level when using dwc and the finer the bubble the more explosive the growth. Good video mate👍

Thanks bro, great video!!!

New sub after a few pepper vids and finally this one. I have a nice large unfinished basement Im planning on starting small and when Im good at it and Im looking towards aeroponics since atomizers put off more heat, it gets cool here in the winter.

Is there a difference in ph and or how the water smells or looks after some time spent in the buckets

Can you check the pH value of both systems? May explain the color difference.

Great video, could you tell me where to get the small 1 gallon, black jars? Thank you for the videos.

Awesome comparison 👏 👌 👍

Thank you for posting! Personally I like the Kratky method, less work and just easier in general. Thank you

excellent video man....how long did you run your lights for per day?

Great video and thank you for sharing 🤗🤗😊😊🌱🌱

Hi, Khang! Have you tried intensive spacing for lettuce in a hydroponic setup?

How often did you change the water for the kratky method? Great video I am learning so much 😀

Great video!

nice experiment just discovered kranky method and this really shows viability

Great experiment…I wonder if some plants would do better with kracky and others do better with the air pump. Maybe some plants need more oxygen to the roots than others. I’m thinking about trying this with other plants. Baby bok choi? Green onions, or kale?

probably the air would work better on a NFT system, the roots would be 'safe' from the air bubbles. nothing like trying to see what works best, so thank you for that.

Can you tell us about that differences between sizes of plants (1gal a d 5gal)? Did you see a significant differences between them?

Great looking . Can you tell me if you ever get aphids or small black winged insects an if so what can I do to get rid of them. Also I don't want to use anything that is dangerous to eat. I look forward to hearing from you. Thanks

excellent video

the air will make the ph swing high. that locks out nutes. ph that down you have a big difference.

Thanks for your presentation. Can you calculate how much electricity you are using and estimate the cost?

Hi khang,New here and New to kratky method... i was wondering if the nutrient liquid that you use is good as Master blend nutrient??

Great side-by-side experiment! Did you have a warming mat in your grow tent?

Did you keep these under the grow light continuously and at only 20%.? Thanks your video is very helpful.

Nice video! What light do you use?

I wonder what exactly, the 5 gallon buckets are best suited for? I would prefer the fill it and leave it method. I would LOVE to know that answer.

Great video. I’ve a question. How often do you change the solution on both systems ? I mean How often do you add the nutrients ?

Thanks for the video. I'm trying to decern the difference between the two growing methods? Maybe I'm missing something, but both involve a bucket of nutrient laden water. Is it just the airpump?

how many hours of light do u recommend per day?

I wonder what would happen if the non circ plant was moved to the circ tank after roots develop differently

Just a question, did top up the kratky or just leave well enough alone.

I'm going to try this with my broccoli baby plants.

Do you have to add water and nutrient often? How do you avoid mold growth in the water?

Did you ever update your nutrient solution during the experiment?

HI. I think what happens in the DWC, wrt to the Algae. Just a thought. When the air bubbles pop on the surface, the slight explosion happening, causes tiny amounts of mist to rise into the air, and the supplied lighting is able to refract along the mist, and assist in the growth of algae. I hope this means something. Just a thought. Thanks. Graham from South Africa

how frequent u need to refill the vaporized water?

I love the Kratky method, the man is a genius for food production.

I have a question. I have hydroponic systems and I'm wondering if the pump stops working, won't they still work, only now as a Kratky system without a pump?

Watching from Japan

How did you record your hydroponics without the led flickering in the camera?

The roots look yummy

Question. Can I use any medium to cover the top of the rock wool? Such as Perlite or other pebbles instead of the hydroton?

What's your grow light distance? I have a 200w LED grow light, and I noticed my kratky lettuce is starting to wilt. Plants are about 24 inches from the light and aren't even directly under the center.

fantastic!

Hi what kind of LED your using? can I use ordinary LED Light for indoor?

awesome!! its all i have to say

do you have one that you start the seed in dwc vs kratky?