What the hell my people, yesterday i didn't measure the PPMs on the water being given to the plants in all eight cups, and i only measured pH. Today, just because, i measured the PPMs on the leftover water from last night, and they were at a whooping 2350ppm, i washed the probe with mild soap and water, they are always on a little recipient with BTI water so they stay wet. As per the manual.
Not one single tip burn i see, and this was water i gave them twice yesterday, at 8am lights on and at 2pm, 6 hours before lights out... Not one single tip burn!!! WTH! 2350ppm.
They look yellow but that is because of the QB288 three inches above... LOL