3 months in and I just can't get any decent growth in soil in my tent until this last week.
On to my 3rd round of seedlings, but they all kept dying at about 5cm high. Yellow leaves, then they dry out and wilt. Tried more watering, less watering, letting them go without for periods, Tried LED, Tried MH. MH is a bit better as I think the heat helps (none of the pro LED people tell you lack of heat may actually be a PROBLEM).. the extra heat and adding more air flow in the last week has seen my best results but it still so damn slow and uninspiring. My mate has the same strain, tent, lights and soil (except he mixed through his compost whereas all I could do was put it on top of the seedling potting mix I used) and he has amazing plants he just put to flower, I started a month before him and I got nothing but climbing power bills to show for it.
The soil seems crap but my mate says 'it's a living soil, its fine' he gave me some home made compost to put on the top of my potted soils but it's still not doing anything except now I seem to have a lot of creatures in my soil..
I dunno do I just keep going, with just water? Doesn't feel right to not be giving the plants anything but water. Do I add nutes at some point, is that why they keep dying? My mate just watered and later on used 'thrive' powder and his compost, thats it.
All I am trying to do now is get the fundamentals right, and I'm slowly starting to see some growth more like what I've read it should be when I worry about these
Keep the temp between 20-25 degree Celsius (SF2000 LED wasn't warm enough so got a 400W batwing MH) - TICK
Keep the air flow and fresh air into tent constant (wasn't doing this before, just had a internal blow fan that wasn't getting new air in / old air old) - TICK
Keep the Humidity above 70% - seem to struggle with this, so have just got a humidifier with hygrometer for the tent, coming in a few days
Apart from that, how much do I need to worry about the ph of my water going in to the soil? Half people say check it, but I don't know if I got a crap ph meter but everything I test (tank water or tap) seems high - tank water 8.5 and tap water high 7's - I think I probably need some ph down.
If after ph and humidity is ticked and it's still struggling, I'm thinking of trying a coco attempt.. but thankfully this latest soil attempt has been improving.