Hydroponic Peppers Race - Kratky vs DWC

As an aquarium keeper I am pretty sure that low oxygen levels is more favorable for algae than high oxygen levels. The higher the DO then less mold and algae can survive. Circulation also plays a part in that too. I have done this same experiment with vastly different results on my channel. The aeration needs to be more powerful. And once the stone becomes encased in a root mass, it looses its effectiveness drastically. The oxygen exchange happens at the surface with the agitation that the rising and popping bubbles create. The large bubbles themselves do not put O2 into the water column by simply being in the water. They need to rise to the surface and cause a lot of agitation. What happens mostly with aeration is the CO2 in the air reacts with carbonates in the water and creates carbonic acid, lowering the PH. The fluctuating PH and CO2 levels in the water is what drives algae growth. Not the oxygen.

Bigger roots bigger froots

Having translucent buckets and algae growth skews the results as both plants are not growing in the same conditions. The more algae the more nutrient loss occurs in the buckets which means less for the plants.If you are comparing DWC Vs Kratky then aeration and nutrient solution replacement should be the only variables. One benefit to DWC is there are less air roots produced which allows refilling the buckets with nutrient solution causing less stress on the plant. Alternately refilling a Kratky bucket with more nutrient solution should if it run out prior to growth completion may drown the plant's roots as 80% of them are air roots.

He did not mention if he fed them exactly the same, He seems to be leaning towards Kratky but be fair about it.

U NEED TO WORK ON THE BASICS.

Try again with buckets that let no light through. Until then, your results are bogus.

You are an embassy the air pump should be at the bottom not at the top sir

you dont know how to DWC, your roots are green, its algae

pour ma part je suis fan du systeme kratky je n y trouve pas d inconvenient!

I just subscribed to your channel. I believe the use of an air pump in hydroponic systems is stemmef from the belief that plants need oxygen at the root source to grow. I think this was more of a hypothesis or probably worked on some plants. It is my belief that the nutrients solutions that were being provided to microgreen systems actually stirred the nutrient supply tanks there-by providing a better supply of nutrients. I have noticed on larger farms that (although controlled by computers) they use actual methods to physically stir the tanks rather than use air pumps. It is also believed that moving water would not incur algae growth. That is still yet to be tested. Your buckets may have proven this if they were dark on the inside. None-the-less, kudos to you for running tests like this. It helps me and I am sure others decide on a direction to go.

Jimmy wheres the cannabis one 😢

Only should use your air pump when in sunlight if you have it on 24/7 it causes root rot

Use black buckets

Your using white buckets that let light in!

Try using true high pressure aeroponics system you can build your own. Uses 90% less water and grows much faster. Did the DWC grew faster?

use cheap aluminum tape to minimize algae

Why u coming on here with your white buckets u fool

WHAAAAATTT

Perhaps the harvest will be very different because of better roots

Kratky method means that water level comes down over time in the container, so the root system that's not exposed to water absorbs oxygen. Therefore I wouldn't expect an air pump to do much good, unless you're constantly topping up the water in the container.

Is that Calgary?

Using black buckets, and black airlines are what you NEED to do....drill a 1/4" hole about 1-2" from the top of the "side" of the bucket. Insert the airline thru that...
In a 5 gal bucket you NEED a 8w or greater air pump. Small 2-3 watt pumps are garbage...I use a 8w quad outlet pump for 2 buckets for my Cannabis, works amazing. Also black buckets....Not one sign of alge growth in years of use... hope that helps you and others that don't know much about DWC systems with air pumps...good luck.

Make sure you use food grade air stones, I know that some cheap aquarium air stones use carcinogens in the material they use to make the stones, would not want that in my system. May also alter plant growth.

Did you use any nutrient solution before moving them to the small jars?

Can i make hole in the side so it can have a aeration?.

As far as algae goes that's because u using white buckets use dark ones

If have them out side paint over the black tho with white paint to reflect the sun so water don't get hot

Or wrap bucket in tin foil

Should been from clones of same plant to make fair

I figured it would mostly be used on the ISS.

Do not paint the buckets.. Cover with growers poly, the back and white kind or use contractor garbage bags that are thick and black.. A lot more easier. Was for me anyways. Air pump is used to get air to the roots as well as keeps the water circulating in the sump.

The plant with smaller roots looks bigger on top

Will it minimize or not at all occurred the algae growth if the system designed to have a water circulating system !?!

... you used a dinky little air stone! try it with a way bigger pump AND bubbler. typical zoomer refusing to accept that technologies that existed before they were born were effective.

You need dark buckets for this. Sorry. Algae locks up nutrients so it's not a fair comparison

Using a airpump is good if you want to use a pipe and pump the water through loads of plants in a small space.

The agae is taking oxygen from the water so the larger root system needs to grow larger to get oxygen. That's my thought anyway.

A circulation pump would oxygenate the water better than an air pump. The oxygen exchange happens at the surface of the water when it's moving.

Ì don't understand this video as an unexperienced grower I'm trying to look up some information. You're telling there is not a lot of difference with or without an airpump, although I see a difference. Look at how the leaves a hanging/behaving. However, what does this mean for the end result? What is the end result? It makes no sense to make a video without a result.

i thought air pumps give your roots oxygen? is that not the case? i think it also keeps the nutrients mixed up as well.

i would wonder about pepper production differences - size/quantity/ how long it takes to produce etc. You would think that a larger healthier root system would have to have some sort of positive impact

It's not the air that produced the algae, it's the light filtering through the plastic.
Wrap the buckets in double or triple newspaper, lay something on the bucket tops, and your algae problem will be gone.

I love airpumps to naturally diffuse the chloroamines the water treatment plants add instead of vitamin c

I use a aquarium sponge filter on top of air so it gets filtration but not too much and water agitation

Love the background view of the city! Id love to know which nutrients and lights you use for indoor peppers.. Do you initially PH the nutrient solution?

Why am I one of the few who knows the best thing is to get black buckets and paint the outside of them White the black blocks out the light and the white prevents your bucket over heating they work hand in hand it's not rocket science but I let u all off if you're thick or just new

Thank you for the video it helps alot and question; was there a difference in taste between the 2?

How often do you change the Solution in the Kratky System? Do you check PH Daily?

And you can use a float valve to keep the kratsy method bucket at the same level even when the plant drinks it.

The reason why there was more algae in the container which had the air pump could also be because the air which was pumped into the water contained algae spores