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That's a good idea for the CO2. And I've found the solution to the fan problem. I am getting a Fantech FGC 6M model that goes up to 430 CFM. But then I put it on a Fantech WC15 voltage regulator, which means I can reduce it to a superlow 100 CFM if I want. I will find the proper balance...

Hi fishenfool, I have a 400W lamp in the box. If 475cfm cools 600W, then 316.6666...cfm cools 400W. But your lamp is not confined in a box, right? Another thing is if I increase the suction too much, it will suck out the CO2 that is added during flowering too fast. I will look for something...

fishenfool: On a closer reading of the article it seems that they also try to suck up all the nutrients if the plants aren't "siblings." That would be a good thing in a hydroponic environment that never runs out of nutrients. Okay, your observation makes sense and it's a good point.

That's interesting. I've read that it is recommended that all the plants should be of the same strain. In fact, I ran across an interesting article in Science Daily where researchers found that plants can recognize their "siblings" and are more likely to share root space with them than with...

They should at least change the shape of the baffles. As they are now they distribute the warm exhaust equally to both sides, which means also toward the intake port of the bulb compartment. It would help if the baffle directed the air stream away from the intake port.

Hi fishenfool: At 10'', how many sets of leaves do you have on the stem? What's lollypopping? (I'm new to growing, but not to using the plants, not by faaaar ...) 10'' is not very big. And they manage to flower and develop fully? Cool. In the meantime I'm going ahead with the plans for a...

I am beginning to realize that I will have to customize the bloombox to get it working the way I want. The suggestion to drill another exhaust vent in the flowering chamber is useful. What is the name of the 500 CFM blower that you're using? Is it a 4''? (With that capacity I would imagine...

fishnfool: So here's the terse exchange I had with BCNL after all that: BCNL: Our 4” fans are 120 cfm ea. I sent back: And the carbon filter rating? BCNL: 4x8 8 lbs 150 cfm 250m3/hr And that was the end of the conversation. So their fan is too weak for the filter. I...

I think the problem might be where you are taking your temperature reading inside the box. Temperature is always taken in the shade because if u put it under direct light it will greatly scue the reading. We have over 5000 units in the field over the last 7 years with great results. If u can...

Thanks for that, fishenfool06. What do you mean by "you can add a 4 inch on the bottom left side." A 4-inch what? I was wondering how the flowering chamber got its air. I looked at the internal sides but couldn't find any place where the air passes from the veg chamber into the flowering...

There have been untimely deaths in my bloombox. The incident happened after I attached the carbon filter to the exhaust vent. This reduced the air flow through the flowering chamber which led to a rise in the internal temperature. As a result, 4 of my girls succumbed to heat prostration...

That's exactly what I did! And it works fine.

No, but there's another concern. I have recently acquired a bloombox, and there is some light that leaks out the back of the unit from the flowering chamber. This would normally not be of concern, but when I shifted the cycle of GrowSmart so that I could run the flowering box at night (i.e...

Yield is everything. I don't need to be extremely stealthy, living in a state where medicinal users are allowed to grow their own. Nevertheless, I have opted to grow indoors and a cabinet is perfect. The reason I want to vent is because of temperature. They (i.e. BC Northern Lights) say that...

Hi Chiceh, I read your first-grow thread and it was very interesting and packed with good advice. What I've been looking for, and maybe you know, is how much the Cool Cab yields in ounces. My target production is one ounce a week, i.e. 8 ounces every 8 weeks. Do you think the Cool Cab can...

No, great. I'm following every word you write. I was looking to get the same box so I'm interested in your experiences with it. The air outflow, how wide is it? I'm thinking of venting the system to the outside by attaching a duct to the exhaust flanges (if there are any.) If not, I could...

Thanks for that, fishenfool. Interesting that you can't run flower and bloom at the same time for heat reasons. I am looking to go with the Producer, and I don't mind having to develop the clones first although that makes the whole grow cycle longer. The increased yield should carry me...

While looking for a grow box, I came across a product from Florida called Harvest Master Xtreme. What intrigued me about this unit is that the top grow lights are separated from the grow space by glass, and there are several fans running in the enclosed part to cool the bulb. That should cool...