@zerobane, Yes it is. this is my 3th grow my last one was the best. 480gr dry of 15 plants. But i have still allot of canna aqua, i want to switch to ghe lucas formula. because i think the leave color is caused by npk shortage.
A couple of days ago i added pk13/14 and it looks al little better now. And i already used some calmag every time.
My tap water is 390ppm so ik was already looking for a reversed osmosis filter.
But nice to see you'r on aero too,
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