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Just planted first seed (1/23/20). Germinated in paper towel after 16hr soak. Seedling planted with 1/2" long tap root. Soil is straight, out of the bag, FFOF in 5 gallon pot. Initial watering with about 3/4 gallon of distilled water. Light schedule is on 6am to midnight. Using a 2 x 2 grow tent. I have no idea what I'm doing with ventilation. Have side vents on tent partially open by making a 'V' at bottom and am running fan at about half speed on dial.. Seem about right as slight negative pressure when closed up. Also running heat mat under pot and space heater inside tent to keep temperature above ~64*F as tent is in room that runs cold in winter during evening (~45*F). Temperature with everything on seems to stay within 68-78*F. Also running small 6" fan in bottom of tent to circulate air. I'm not sure what I'm going to do about LST, topping or defol yet.
Update 1/25/20: Sprout appears. Woot! I also had to scramble to replace the "Numifan 500W space heater" I was using as it failed in the middle of the night yesterday. I had a larger 750/1500W space heater on hand and used that while waiting for replacement from Amazon. This caused pretty wild temperature swings in tent as heater turns off and on with thermostat...as much as 20*! The Numifan 500W was bad enough at 10* swings. This morning I received a new "LIFE SMART 350W Mini Wall-Outlet and Table Portable Electric Handy Space Heater" from Amazon. This one is the bomb! Much tighter on the thermostat with temperature swings only a couple degrees! Now able to maintain solid 76* in tent 24/7. Also no more wild swings of humidity caused by heater. Humidity is now holding at ~36%. I may still need to add a humidifier but I'll hold off a bit.
Update 1/29/20: Everything seems to be going smoothly. I am struggling and stressing over when and how to water. I have not watered for 3 days. I will probably give some water today. I'm also tracking temperature and humidity. I've got the temperature dialed in but the humidity is low at ~32%. I will probably be buying a small ultrasonic humidifier to put in the tent.
What to do with vent flaps at bottom of my 2 x 2 tent? Exhaust fan running at ~33% speed with carbon filter in tent as intake. Tent In cold room (overnight temps 45-55*F) , running heater and humidifier in tent. Currently, 2 of 3 flaps tented at bottom of flap to allow air in.
I would close them to keep the heat inside. At this point there isn't much need for them to be open unless you have heat issues and wanted the cooler outer air to get in the tent.
Help! I thought I had this. Is this calcium deficiency? I've been using treated water (1tsp CalMag+ 1tsp Grow Big per gallon). It's just getting worse. See photos and descr. from past few days.
Hey man I just saw your question about harvesting...first the plant isn't ready to harvest yet. Your pistils really aren't starting to die off yet. You have several weeks to go from what I see. The damage on your leaves is a light or heat related issue. I would try to get the light as far away from them as possible so you can push them longer. Good luck!
@HiddenOp831, Humidity too high or too low?
I found a great humidifier (and heater too) that's perfect for small grow tent. Winter here and tent is in cold room with ~25% RH.. That's why I'm running space heater and humidifier in tent.
@Gewroo, totally understand. I’m right there with you. This is my first auto, second grow. And my first grow was just one plant. I’m having humidity issues at the moment that I’m dealing with.
@HiddenOp831, Using plastic 5 gal. pot. I'm not really watching for saturation runoff. I did that initially before first planting to get idea of pot weight. Since then, I've just watered when it seems like pot got light. This seems to be accompanied by the first inch or so of soil to be very dry. I dunno. Seems to be working for me so far. After planting and during early veg stage, I was watering 1/4 gallon every 3 days or so.. At current stage, I'm giving plant about 1/4 gallon per day. I'm also stressing over keeping temperature and humidity in check. Other than that, I have no idea what I'm doing.. LOL
Good choice of seed for your first grow. A couple of them took longer than I was expecting for an auto but I was very happy with the results I had from this brand. Hope you enjoy your grow as much as I enjoyed mine.
Is the spotting happening on the top leaves? if yes, then it is a calcium defiicency, which by the pictures it appears to be the case. The problem with calcium deficiency is that the symptoms appear several weeks after the deficiency is present. At this point there is very little you can do. your water should always have a base of 0.5 EC (250 PPM), if not then you need to add cal mag to get to that point.
@@Athos, Thank you!! Not necessarily on just top leaves.. It seems to have started on lower leaves and spread up. I have cut out a lot of the lower leaves that were looking bad. Now it just seems all over. I have been using CalMag (1 tsp/gal) the last few days and yesterday I treated with Safer 3-in-1 Garden Spray for Rust fungus. I'm really suspicious of rust fungus because I've had occasions were nighttime temps were in the low 60s with 70% humidity. I've since started turning off humidifier at night and just let the humidity drop into the low 30s overnight.