Grow 3 Alaskan Thunder Fuck

-First real maintenance since I’ve gotten back -Gave all the plants a full feed now that roots are touching water -concerned about air bubbles not being enough, considering adding a second pump or getting a stronger air pump. Currently not using air stones cause the air stones purchased have greatly diminished oxygen dispersal. Is the air stone the problem or the pump? -Will let the plants get used to the full feeding, trellis sometime during the week and then flip at the end of wk 4.