2nd week... a little growth. Started micro dosing on nutes for the past few days. I also relowered the lights back down to 18".
In my opinion I haven't had much growth I think compared to where others would be at during this time frame but I've been trying to dial in on some factors:
Humidity has been low 36-39% ... just bought a humidifier and added it to the tent on low setting. It should cycle on and off with the fans in the tent.
Water PPM.. my tap water was around 440.. I wasn't aware this was too high so I've been trying to find a RO water source or buy a RO filtration system.
Temps have been consistent around 80° + .. trying to get that lower.. exaust fan has been running but I probably need to crank it up a bit. room temp is around 77 so I should be able to reach 79-80 on high setting.
I'm also concerned about my Co2 room levels. My setup is in a unused room of the house and I'm sure the levels are low.. need to buy a meter... but I've been looking at getting a Co2 setup. I've tried putting a spore box in the tent and a Co2 bottle to give them something at least.
LED.. someone said it before but I think the light may be too intense at the moment... idk though.... probably should back it back up off the plants for the time being.. seems like they stopped growing when I brought it closer lol.. but that was only a 6" difference.
I'm probably over thinking everything but I'm the type where if I do something I do it fully so I'm just looking and doing everything that I can.
Good luck... so I see you’re using a 600W already and the seeds haven’t even popped yet... If you use such intense light, they’ll never pop out. If I were you I’d either put them in the darkness or a very weak light.