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Side by side experiment to see how well lettuce seeds germinate on cotton balls compared with rockwool. It looks like the cotton balls are a great alternative, cheaper too!
This video shows the process of growing radishes hydroponically from seed to harvest, Kratky style, using loofah sponges instead of rockwool. You might be interested in the following videos mentioned in the video, this was a fun experiment, and the result was delicious tasting radishes! Is Rockwool Dangerous? https://youtu.be/4Yod04di3zE Mixing Masterblend Hydroponic Solution: https://youtu.be/CkFgxNbOExk What…
