Lettuce | Middle | Celery about a month after planting
Tutorials and Tips

Hydroponics for beginners! Start with Kratky in 2020

Are you interested in getting into hydroponics but do not know how? Let me help you!

I’m pretty sure by now you’ve read article after article about the basics of hydroponics. To put it simply, it’s the art of gardening without soil. Though it’s far different from traditional growing, you have to remember that hydroponics shouldn’t be difficult. 

You see, one of the tricks to ensuring success in hydroponics gardening lies in the system that you choose. Don’t fret, there are only seven systems you can choose from. And out of these seven, the Kratky Method is what I would highly recommend for beginning growers. 

No worries, because I’ll explain to you in detail how the Kratky Method works and why I highly recommend it to beginners. I also spilled my favorite tools and products you can buy to jumpstart your Kratky Hydroponics System. So what are you waiting for? Read on!

You may also check my video where I talked about the basics of the Kratky System and why I like it.

It all started with Mr. Bernard A Kratky, a researcher in Hawaii and inventor of the Kratky Hydroponic Method. In his study in 2009, he discussed the use of floating pallets for commercial food production. Because of this discovery, he was able to find an efficient passive method of growing plants that is similar to the Deep-water culture (DWC) hydroponic method but without the air pump. 

How Kratky Hydroponics Method Works

I am not kidding when I say Kratky Method is the simplest hydroponics system ever. Don’t believe me yet?

It works by placing a plant in a container and allowing the roots to grow into the solution. This container can be anything from a used mason jar to a grow tray. Luckily for you, I shared my favorite containers in this article. So, I suggest you continue reading.

From there, the roots will continue to grow down into the nutrients as the water level goes down. This method allows the roots to absorb the oxygen they need. 

how-to-keep-Hydroponic-Herb-basil-alive

When your container runs out of water, this means the plants have reached the end of their growth phase. If not, you can always fill up the container with water and nutrient solution, and allow plants to continue to their growth phase. 

If you’re interested in knowing more information as well as my experience with the Kratky Method, then I suggest you check my video below. 

Why is the Kratky Method Better?

Need I say more? The Kratky Method is the simplest among the systems for growing with hydroponics. That’s why I highly recommend it for beginners and advanced growers alike! 
 

Easy Set-up and Inexpensive

Systems like NFT (nutrient film technique) require carpentry skills to assemble, operate, and maintain the system. But no skills are necessary to start hydroponics with Kratky! It’s essentially a set it and forget it hydroponics system. It only requires a container, a light source, nutrients, and grow medium to grow any plant you can imagine indoors! For beginners, you can start with DIY containers and later upgrade your containers and systems, similar to my setup.
 

Low Maintenance

As mentioned, all you need to do is fill a container with nutrient solution and allow the plant to grow down into it. The difficulty level for getting started with this system is incredibly low. You can even start by placing store-bought veggies in regular water such as green onion. Give it a try!
 

Most Flexible System

Other types need pumps, reservoirs, and air bubblers while Kratky doesn’t. Not to mention, this can be done indoors, outdoors, and even in a kitchen window.
 
Though other systems are indeed better choices for large-scale operations and commercial hydroponics, where thousands of plants need to be grown at the same time, the Kratky Method is not something to be brushed aside. According to Mr. Kratky, this method can be used with success when planting fast-growing plants like lettuces and spinach. 
 

Foolproof

All other systems rely on electricity in some form. This means if the electricity fails, your system also fails. Air bubblers, circulating pumps, tubing, and valves can all lose power or clog up. As soon as your plants no longer receive water and oxygen, they will be unrecoverable within a few hours. With Kratky Method, you don’t have to worry about these. 

Pros

  • Requires little to no care; perfect for hobbyists or beginning growers
  • Minimal cost
  • Extremely easy to set up
  • Foolproof

Con

  • Might not be ideal for large-scale growing

Kratky Method:
Most Reliable Hydroponics System for Beginners

Since the Kratky method is so flexible and foolproof, I recommend this method over all other types of hydroponics systems. If you want to get the job done most effectively, Kratky is the method you should choose. 

Luckily for you, I made a video where I ranked the different systems based on the level of difficulty. I bet you know now the best one on my list. Otherwise, I suggest you check it below! 

DIY Hydroponics Setup

DIY Nutrient Film Technique System

Now, here comes the fun part! Let me share with you the things you need to jumpstart your Kratky Hydroponics System journey.

No worries because the items that I am sharing with you are common for any hydroponics system setup. Hence, if you decided to later upgrade or try other systems, it would be much easier and convenient. 

1.5-inch Rockwool plugs:

This is the inorganic grow medium that hydroponics sit in. You should have these regardless of what starter kit you use. I find that this is the best for beginners because you can start plants from seed on it. One caveat, though, is you should be careful not to breathe in the fibers because they can be hazardous in large amounts.

2-inch net pots:

You can indeed make your net cups. But why the need to buy one? For one, these net pots are reusable thus helping you save natural resources, protect the environment, and save money. As if that’s not enough, they’re durable and will last you a long time with many uses.

Three-part quart General hydroponics solution

It’s important to stock up on high-quality nutrient solutions when doing hydroponics.
 
This is a liquid concentrate that has instructions on how to change the mix for different stages of the plant. If you’re just starting out, you may opt to use the general-purpose growing blend. Once you know more about hydroponics and want to experiment, you will already have lots of practice making solutions. This 3-part mix will give you hundreds of gallons worth of solution.
 
Take me as an example. I have made about 80 gallons, and it’s only about halfway done. To see how I mix my nutrient solutions, I suggest you check my video below.

Maxigro powder version

Not a big fan of liquid nutrients? I have good news for you! You can save 20 dollars by going with the Maxigro powder version. This is ideal for growers who are starting out and only want to grow leafy greens. I also suggest you go ahead and buy the second part of this version for the flowering and fruiting stage of your plants.
 
If you’re wondering, the powder version is simpler if you are aiming for the absolute easiest mix. The only downside, though, is it is not as customizable as the liquid concentrate.

Seeds

Everything’s useless without the seeds so don’t forget to stock up on your favorites!

You should start with some delicious herbs and leafy greens. They are quick-growing crops that you can start eating as early as one month! 

DIY Containers for Hydroponics

Hydroponics DIY Container
Would you believe me if I say you need to shelve out $80 for containers? Well, here’s why!
 
You see, hydroponics gardening is easy as long as you have the right tools. This initial investment is what you need to get started with hydroponics, especially if you plan to use DIY containers for the long haul.
 
The reason why I pick these items is because of the amount of growth you can do with them and how reliable and durable they are. Based on my experience, each item lasts me a long time. Besides, the amount of food you can grow with it will easily pay for itself. 
Cucumber 1.5 months
To set up these containers for hydroponics, you will need a 2-inch hole saw and a power drill. But, you can also get away with a marker, a pair of sharp scissors, and a lot of muscle.
 
This container is perfect for growing outside, windowsill, or in a grow light setup. Mine holds half a gallon of the solution Hence, I rarely need to replace the liquid. If you plan to grow large, long-term plants like cucumber, lavender, or tomato, I suggest you use this version.
 
To see more of my other favorite containers for hydroponics, check my video below!
 

Hydroponic Starter Kits

Not a big fan of DIY? No worries, you can always opt for a grow box. This makes it easier to grow plants and vegetables in a small space since everything you need is included in the package.

HydroFarm GCSB Salad Box

HydroFarm GCSB salad box

This grow box is perfect for beginning growers who want to transition from indoor to outdoor plants. It’s so easy to set up. You’ll love that this comes with almost everything you need to start growing.

 I kid you not. The grow box includes one reservoir tray, one top plate lid with eight plant sites, a top-off bottle and cap, eight net cups, eight root wraps, and six drain plugs. As if that’s not enough, you also get a 50-gram packet of general-purpose nutrients. 

I’m pretty sure you know by now the importance of nutrients to hydroponics gardening. So here’s a tip for you! To help you save money, I suggest you refrain from adding nutrients when germinating seeds. This is because seeds have everything they need to grow from seed to seedling. I would add the nutrients once the plants have germinated and are a week or two old.

With this grow box, I can guarantee you will love how easy hydroponics is. I bet you will quickly fill the containers up with plants. 

Pros

  • Comes with almost everything you need
  • Ideal for growing a small, soil-free garden of salad greens and other plants

Con

  • If you plan to use the root wrap, you have to germinate the seeds in potting soil or an inorganic growing medium first. 

Ivation Herb Indoor Garden

Here’s the thing. It’s difficult to ensure that our plant gets all the light that it needs. But thanks to growing boxes like the Ivation Indoor Gardening, you can plant anywhere at home!

This comes with everything you need to start except seeds. I recommend you start with planting lettuce, buttercrunch, or romaine. Or better yet, you can also buy flowers or any decorative plant.

Here comes my personal favorite. The Ivation herb garden kit also comes with a grow light. If you’re wondering, the grow light features a white led light, which is the best type of grow light you can purchase. White LED Lights have a full-spectrum light to promote full and healthy plants. The light is also adjustable and automatically cycles on and off to simulate the sun.

Did I mention that it’s reasonably priced, too? Now, that’s such a steal!

Pros

  • Comes with almost everything you need
  • Has a grow light
  • Ideal for growing a small, soil-free garden of salad greens and other plants

Con

  • Plants grown in these types of pods do not like well water, spring water, or very hard water. Make sure to use only soft/ RO water to ensure the seeds germinate quickly and healthy. 

My Indoor Hydroponics Setup

If you’re looking to upgrade your setup from grow box, then I recommend you check my indoor setup.
 
With this setup, you can process a lot of plants in a small area. These are also perfect for growers who’d like to delve into vertical farming.
 

Place/Area

I find that the best places for this type of setup are your basement, spare bedroom, corner of a room, or garage. 
 

Investment

I suggest you allot a budget of at least $255. Keep in mind that this amount excludes grow shelves and grow lights.
 

Capacity 

If I were to use my system at full capacity, I can grow up to 512 plants in a 4’ by 2’ by 7’ high space which is incredible!

Grow Shelves

I am the type of grower who values uniformity, efficiency, flexibility, and space savings. Hence, I made sure my setup also embodies those aspects. 
 
You can see that I make the same type of containers in the same system. This setup also made it easier for me to adjust the shelves and grow lights to accommodate many different plants.
 
At the bottom shelf, I keep my large growing plants like cucumber and tomato so that they have more space to grow or expand. The other shelves are used for germinating and growing smaller plants like kale and lettuce.
 
If you’d like I made a blog that includes tips and tricks on growing lettuce hydroponically.
 

Trays

Almost everything I use is reusable, durable, and multipurpose.

Bootstrap Farmer 1020 Trays:

These are great because you can use them for germination, microgreens, or hydroponics.

1020 Net Pot Trays:

No need to buy separate net pots because Bootstrap Farmer has made one specifically for their 1020 trays.

6-Mil Mylar Film Roll:

These are essential to cover trays and prevent light leaks. It can also be used to prevent algae from growing. The product claims to be wear-resistant, waterproof, anti-corrosion, anti-crease, and easy to clean!

Organic Expanded Clay Pebbles:

These natural, porous, and reusable clay pellets are just what you need to fix issues of overwatering. You’ll also love that it has neutral pH and a pretty decent water-holding capacity. 

Here’s a little treat for you. I also made a video where I showed steps on how to set up trays for Kratky. So, you better check it out!

Conclusion

Hydroponics is easy as long as you have the right tools and system. I highly recommend starting with the Kratky Method as it’s flexible, foolproof, inexpensive, and simple.
 
 You can find out more about my blog here where I did a 90-day Hydroponic grow Challenge. You can see how much I struggled at first but mistakes happen. What matters is you learn through it.
 
I hope this article has convinced you not to put off your hydroponics journey any longer. Because to be honest, I wished I had started mine sooner! What are you waiting for? Let’s get growing!