- Thread starter
- #21
DRM Ranch
New Member
Foliar fed the girls today with 1/8 strength nutrients pH'd to 6.6
How To Use Progressive Web App aka PWA On 420 Magazine Forum
Note: This feature may not be available in some browsers.
Environmental control is driving me a bit batty, and I think my plants would much prefer a more controlled environment even more than I'd like to have one.
I need humidity control, at the moment that means a humidifier. Exactly how I'm going to control that I don't know at the moment and any suggestions would be great.
I need better air circulation around the plants, so I'm going to invest in an oscillating fan. My little fan is not cutting it.
I think with those two items I should see a bit better temp control.
I need to start buying my red t-5 bulbs, I need 16 to load up both lights, yet I hear mixing blue and red works? Any ideas here?
I'm only soso happy with my new RO kit, it reduces my water to 24ppm from 300+, but I'm feeling the need for a better set of pre filters and carbon filters. I have an old three filter RO kit without the RO membrane, I'm going to load that with 10, 5, 1, micron pre filters and load the two RO filter slots with 1 and 0.5 micron carbon filters and see how that works out. I'm not interested in dealing with water issues.
Merry Christmas to all
Thanks for looking J Washington, I hope your Christmas was great and your New Year starts out well.Hi DRM
Merry Christmas and Happy New Year to you...
Tell me more about your grow environment. Is it a physical room or a tent? Is your space set up with air exchange? ...in line fan pulling air through the space. I recently switched to LED, but grew with an 8 bulb T-5 fixture for 4 grows. They generate substantially more heat than LEDs causing a battle with HVAC. I used to switch bulbs to red for flower cycle, but later mixed bulbs 50/50 through both cycles which seemed to work OK. Maybe it is my imagination, but the reds seem to burn cooler than the white/blue.
If your looking for new oscillating fans these two Ozeri fans have been great for me.
Several leaves look just like this.
Points that I believe are relevant, temps below the canopy have gone up to 82°F I assume canopy temps were far higher. I have moved the lights up higher and moved my thermometer to canopy level to better monitor temps at that level. Bonehead mistake I should have done right off the bat.
I have fed twice using SoCal tap water, I'm waiting on a fix for a broken RO filter fitting, FML. Otherwise nutrients are the same.
A couple young rooted clones under the same light but we'll below the 82°F zone are not similarly effected.
Thanks for looking J Washington, I hope your Christmas was great and your New Year starts out well.
The grow is in a 400cf well insulated closet.
Airflow through the room is pull through with a 400cfm 6" inline fan, the fan is controlled by thermostat which keeps canopy temps at 80-81 when the lights are on.
Air circulation is maintained by an oscillating fan and a box fan with a whole house allergen rated filter attached (intended to reduce mold and mildue spores).
Humidity is now kept above low 30% by an evaporative humidifier which is controlled by a humidistat.
Lighting is two 4' sunblaze 8 lamp HO fixtures on timers 16:8 light schedule with lights out at 8a as night time temps here are in the 30s and we don't have an HVAC system of any kind in the house at this point.
My night cycle temps are in the 60s, which I'd like to increase to the 70s with a thermostat controlled heater (waiting on the almighty $$$ for that). I know this is an issue.
Night cycle humidity is in the mid 70% range, I'd like to bring that down to the 40-50% range with a dehumidifier, increasing airflow is not currently an option as temps would plummet way below acceptable, more money is needed to get that done.
I'm using a simple 3 stage RO system at the moment for my water source, I have a 4 stage system that needs all of the water line fittings replaced, so that might be added later in some form or another, ppm out is 24, down from 300+ with lots of chloramine in my source water, I'm okay with its performance just not absolutely thrilled.
I'm watering by hand in a recirculating manner as that's my ultimate goal, parts collecting as I find what suits my needs. The basic method is to check and adjust reservoir pH, water the equivalent of the container in volume, recheck and adjust reservoir pH and water again using the reservoir solution, then water with fresh mixed nutrients to bring the rest level up to full. I'm seeing a drop in res pH after the first watering which is why I'm essentially forcing the media back into the 5.8-5.9 pH range at every watering. I don't consider the process done till runoff is in that range. This seems to have helped in correcting an earlier lockout of magnesium along with a slight increase in MagPro by 0.4ml/g.
Media is grodan cubes, the crouton sized stuff, I very much like this media, root development is very nice in most of the girls.
I'm going to kill off the slowest girl, she is very sad looking and never did well from the start. I checked on her roots and they aren't up to par at all.
The two largest girls need to be up potted to a #5 container this week. Their roots are air pruning at the drain holes...
I've sprayed them with a solution of baking soda and RO water twice (30min prior to lights on) as an extra prevention against powdery mildue which is a problem here, I'd like to avoid chemicals if at all possible. Thus far I've seen none on the girls, but I don't want to fight that battle if I can avoid it.
There you go, its time for me to check on the girls and see what they need today.
When I travel, I hear a lot about the powdery mildew thing. Colorado state was confiscating plants from commercial grows because of it last time I visited.
Sounds like you have the light cooling thing under control with your in line fan, but you need air to move through the room 24/7. Maybe I am not understanding your room dynamics. I don't use a light that requires cooling so I don't have that factor to contend with. So you are cooling a T-5?
I have a similar room. Try to imagine this. The door into the room has a vent at the bottom that I cut in. On the inside of the door the vent is ducted with 3 - 90 degree bends (secured to the inside of the door) in the duct to prevent light leak. The fresh air is pulled into the room and out the duct secured to the door, through the plants and up to the carbon filter hanging from the ceiling on the other side. The filter is ducted through the opposite wall where an inline fan pulls "stale" air out of the room. The fan runs 24/7 pulling conditioned air from the rest of the house, into the grow room, through the plant space, up to the ceiling and ducted out of the room and spilled out through the inline fan in the attic. I have some pics in my White Widow Journal if you want to see. This keeps my room between 30-40%.
Almost forgot, here is a great little inexpensive thermostat outlet I use and got at Home Depot. It is inside my room and a space heater outside the room blowing into the fresh air duct. When the temp in the room goes down, the space heater turns on and the same inline fan pulls the warm air through the room.
Lux 5-2-Day Outlet Programmable Thermostat-WIN100-005 - The Home Depot
Hi Ranch
The leaf thing could be CaMg deficiency, especially if you are using R/O water. Where I am the tap water is fine after sitting 24 hours. However I use a CaMg supplement anyway to ensure proper nute uptake. Just a thought