CO2 Tablets in a BubblePonic/Hydro system
- Thread starter ste147
- Start date
It's a thought. Although I'm not sure the roots can actually absorb much, if any, CO2 directly, it'd have to get into the air and around the leaves. You might be better dissolving them in a cup in the tent / room. How much CO2 they release I'm not sure of - they might not release enough for it to actually do much. If you haven't already and can, it's worth looking at things like the ventilation setup you're using - e.g. use some ducting and have a fan pull fresh air into the grow. I run mine in a tent which is in quite a small, constantly closed room. I seal the tent up during the day and have all the air the scrubber is sucking out of the tent come in through duct that goes to a window. It's a bit cold at night, so I open the door and it recirculates the air in the room. If you like my reply, please vote in my bulb poll in my sig.
I don't use anything for CO2 nope. My tent is all sealed up during the day while the light is on. A 250cfm fan sucks air through the cooltube my lamp is in. The walls suck in a bit and I put sheets of paper over the vents to completely block any flow through them. The only way into the tent for air is through the 6 inch duct that goes to the window, so there's a serious breeze of cool, fresh air continually blowing through the tent. Solves two problems. The tent is shut in a small room and the lamp is 1kw, so the room will get really hot if I let the lamp run and the fan just recirculate air in the room, the tent temperature will go over 25C. Having only fresh air go in keeps the temperature down. Recirculating the air would also not give the plants much CO2, since the room is tiny. Beyond that, I doubt there's a lot that will improve things, I don't think the plants can physically grow much quicker. Proper ventilation will do you good. If you have a window around and the temperatures are good, I'd go with that. Also depends how heavy you're growing. What I've described above is for 5 plants that are approaching 6ft tall filling a 4ft by 4ft square. -pls vote in my bulb poll (sig)-
im looking to grow in a 2 metre squared tent with 2 600 hps' blue halide for veg and hps for flower. Im sure this can get quite hot, so as long as i have good vents i shud be ok?
With 2 600's in there, you'll definitely want some cooling. With an ambient temperature of maybe 15-20C, my tent will easily go towards 30c if I zip the door up and just let the fan recirculate air. It also depends on how big your room is and if you'll be leaving the door open to the rest of that house.
Mine is in quite a small room with radiator off and the door closed 24/7.
For that much wattage in that sized tent, a 250cfm seems good. The intake duct from the window sucks lots of cool fresh air in at the bottom and a desktop fan blows it up into the leaves to make sure it doesn't go straight out the cooltube. You should watch your leaves with the air moving. If they're wiggling, even slightly, there's enough airflow over them to avoid pockets of stale air.
I tried sitting in my tent under the light with the door zipped up. I was virtually naked at the time for reasons unknown and was trying to feel how the drafts were flowing.
Using the duct idea, even if I closed the vents over, because they're on the inside they'd still blow open a bit and I could feel air coming through. If I pushed the shut with my hands, lots more started coming through the duct. The duct is about 4m long and smaller than the vents, so it's easier for the fan to suck air through the vents. Putting some sheets of paper over them on the outside sucks them tight against it and blocks all entrances but the intake duct.
Good thinking on the two 600w's by the way! I'm guilty of running a single 1kw, but I'd definitely go the 600 x 2 or 400 x 3 route next time - even with a cooltube ripping cool air through it, a single lamp that big creates a big high temperature space around it that the plants don't love. Plus 5 - 6 foot plants = a close call
-like my reply? pls vote in my bulb poll (sig)-
Packet.
Well-Known Member
so adding h2o2 to my res will help during flowering? any special ratio to follow?
AeroKing
Well-Known Member
H2O2 is hydrogen peroxide. When you add it to a reservoir, it disinfects it. (This is counterproductive if you use any beneficial microorganisms.)
As it breaks down, it gives off oxygen and water.
It is not a necessity, but it can help if your system does not produce enough D.O. because of design or high res temps.
Gb0ost
Active Member
H2o2 will not do what you are looking for. Get a co2 tank and regulator. Huuuuuge difference. Stay away from the homemade co2 bs. They don't produce enough to be truely beneficial. A co2 tank like are used in keggerators are perfect and you will notice a difference in a few days.