How to Make a Mini Kratky Hydroponic System for Lettuce

How to Make a Mini Kratky Hydroponic System for Lettuce

In this video, I’m going to show you how to make a mini Kratky system for growing lettuce. I logged the entire progress which took about 5 weeks. Depending on which variety of lettuce you’re growing, it may take more or less time. Below is the nutrient mix I used in this video.

I got the seeds from Jim Conner. He grew the same lettuce recently and it was much more massive. Please see link to his video below.

Jim Conner:

Flora Series:
pH Down:
pH Meter:


AeroGarden Nutrients:

Clay Pebbles:
2 Inch Net Pots:
1.5 Inch Rockwool Cubes:
Rapid Root Plugs:

Grow Light Rope Hanger:
Grow Tent:
T5 Grow Light:
Digital Timer:

Solar Power Air Pump:
Clonex Rooting Compound:
FoxFarm Ocan Forest:
10 Gal Grow Bags:
Grow Bag Saucers:
Heating Mat:

Hydroponic Nutrients(Masterblend):
1 Gallon of water, pH is between 5.9 – 6.5
3 Grams of Masterblend 4-18-38
3 Grams Calcium Nitrate
2 Gram of Epsom Salt


Khang Starr


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Written by Aleksandar

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