Can’t say much more than ^ tbh the roots go in search of water so if your constantly giving them it no reason to grow, the 1.5” air gap gives more than enough humidity to force the roots threw to the bubbles where they’ll get splashed feels slow at the start but once there rooted they explode in growth I wouldn’t change the res for first 2 weeks while they grow let the roots build an immune system and all the bacteria they need to fight disease, set ph to 5.8 nd only adjust if it goes over 6.5 ph likes to wander it’s good in hydro as different nutes uptake at different ratios if u keep the conditions right the plants take care of them self