Growing nicely so far can't complain, EC went abit high from a three day heat wave we had but they don't seem to bothered, they did show slight cal mag deficiency after sprouting with the distinctive brown spots but seem allot better since they been in the system. Nothing fancy just a small pump, pumping the water straight up, doesn't actually touch the roots until they make their way down to the water, I found they root much faster this way rather than being fully submerged from young.