Bubbles? We dont need no stinking bubbles! Kratky vs. DWC part 2

Day 29 of the Great Kratky Challenge! Both plants are doing well in flower. The DWC seems to be a bit taller and longer roots but the Kratky is not far behind. Makes me wonder what the hell an air pump really does in DWC! Next run i may do an all Kratky grow just for the fun of it. All i know is DWC plants will not  perish without an air pump. Its not a live or die situation like many people think. STILL have not changed my nutreints! Just topped off. Still have not checked pH. Next time i do a DWC run, I will wait about one month before i even turn my pumps on. Probably save more than a few bucks considering pumps run 24/7

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