This is 2 of 3 videos to see what happens when growing plants kratky style in reverse osmosis water and tap water.
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PH up PH Down – https://amzn.to/2SLmdDo
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3″ Net Cups – https://amzn.to/37qGnYI
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Mars Hydro Light – https://amzn.to/38z5c66
To save 3% on you next Mars-Hydro purchase, use coupon code GrAn22
Coupon is no longer good for the TS or SP series.
Mars Hydro Website – http://bit.ly/2QA55AA
Mars Hydro Grow Light and PH Comparison Series (SP250) – https://www.youtube.com/playlist?list=PLogUxCOrWb5wAuan_IKBr3IrHQaonfd2u
Full disclosure, I do make a small commission if you use my coupon code. The only product you cannot use the code for is the Mars ECO light.