Is Rockwool Safe to use in Hydroponics: The Pros and Cons of Using Rockwool to Start Seeds

One of the most common ways of starting seeds for hydroponics is to drop the seeds into a cube of rockwool. Its really easy – although you do need to soak the rockwool in water first, but this video is not about HOW to use rockwool. The purpose of this video is to try to answer some concerns growers have about USING rockwool. What are the advantages and disadvantages to using rockwool?
Links to products used for growing in rockwool, Amazon affiliate links:
Rockwool: https://amzn.to/2VGLZuo
pH up/down: https://amzn.to/36MU9ru
My Bird Feeder: https://amzn.to/3lNydAW

source

Tikki O.