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I'm using a hyrdofarm digital timer to control my lights http://www.hydrofarm.com/pb_detail.php?itemid=4168 There was a brown out (where the power goes off for just a second) in my area yesterday. When i checked my grow the lights were off and they didn't come back on afterwards. I immediately...

In case anyone is interested I found some software that will capture readings from the CHHC-1 and exports the data to an Excel spreadsheet. The software install is in Chinese or Japanese but just press the "next" button and it installs fine on Windows XP. The program itself is in English...

I was reading an article in urban garden magazine (Nov/Dec issue) that said that adding pH down directly to your nutrient solution "causes nutritional elements to precipitate out of the solution and therefore become unavailable to your plants. To avoid this... dilute 1 part pH adjuster to 100...

Some of my plants have rust colored brown spots in between the veins on the leaf edges and extremities. I think it's possibly a Mag def but being a rook I really don't know. The spots look light green/yellow in the pics but in real life they are more brownish.

So this Sour Diesel is starting the 3rd week of flower and it's about 4 ft tall and stretchy. My lights can only go about a foot higher and it's at least 18" above the average height of the rest of the group. Is it too late to top it? Any suggestions?

In my veg room I have an exhaust fan on a TMP-DNe temp sensor so it kicks on when it gets hot in the room and turns off when the temp drops to a set level. Outside temps have been low recently so it's not turning on as often as it was when I set it up. I'm concerned that my babies may not be...

My grow room is 10x10x8. I have a 50lb CO2. I've been running my an average of about 1250 ppm. My room is not completely "sealed" in the fact that I am bringing in fresh air as needed to control temps. I'm using the CHHC-1 so that CO2 is not released while the room is being ventilated for...

I'm setting up my 9x9x8' grow room and I just installed a 10" max fan for exhaust (see journal for details: https://www.rollitup.org/grow-journals/232930-first-grow-3000w-ebb-gro.html#post2972131 ) . I will also be installing a 10x39" Phresh filter for odor control. I'm trying to figure out...

I'm setting up a grow room with CO2 and trying to figure out how to keep the CO2 in the room between ventilation periods (see journal for grow room details: https://www.rollitup.org/grow-journals/232930-first-grow-3000w-ebb-gro.html#post2972131 ). I'm thinking of using backdraft dampers but I'm...

My friend has the deadband on his AC setup to 3 degrees so his AC comes on fairly often. I've read that a lot of on/off intervals is not good for the compressor and is not very efficient. I was also thinking of combining AC with venting to cool the room very quickly but also have the deadband...

My friend has the deadband on his AC setup to 3 degrees so his AC comes on fairly often. I've read that a lot of on/off intervals is not good for the compressor and is not very efficient. I was also thinking of combining AC with venting to cool the room very quickly but also have the deadband...

I'm in the process of setting up the Ebb & Gro bucket system. My room is 9x9' and I've got 4x 600w lights. The strains are Sour D, Flo, and OG K(r)ush. (for more info see journal here: First Grow - 3000w - Ebb & Gro - H&G - Sealed ) I'm cutting the 3/4" tubing and trying to figure out how much...

I'm in the process of setting up the Ebb & Gro bucket system. My room is 9x9' and I've got 4x 600w lights. The strains are Sour D, Flo, and OG K(r)ush. (for more info see journal here: First Grow - 3000w - Ebb & Gro - H&G - Sealed ) I'm cutting the 3/4" tubing and trying to figure out how...

Building on this idea I'm thinking of trying the following: Put the intake and exhaust on a thermostatically controlled outlet so that they only come on when it is cost efficient to bring outside air in. If it's 90 degrees outside i'd rather not bring that air in and try to cool it down. So the...

So I got a new dual hose AC unit. So far works great. I have noticed that the CO2 level does seem to dip when the AC is on (from like 800 ppm to 600 ppm). I'm thinking maybe even though there is an intake hose perhaps some air is being exhausted out. Or perhaps CO2 is being "filtered" out...

So I was having a problem with stretch. A couple of plants grew from 6" to 24" in 2 weeks with very large spacing in between nodes. Part of the problem which i have resolved (I think) was the light (a 4 bulb T5) was too far away. I pruned the tall plants and moved the light closer to the...

Hello, I would like to lock my grow journal thread. How can I do that? https://www.rollitup.org/grow-journals/232930-first-grow-3000w-ebb-gro.html Thank you!

Hey. I just finished customizing my Ebb & Gro bucket system with 3/4" lines. If you are interested in Ebb & Gro system check my journal for info. First Grow - 3000w - Ebb & Gro - H&G - Sealed . It may be helpful. Peace

Hey. I just finished customizing my Ebb & Gro bucket system with 3/4" lines. If you are interested in Ebb & Gro system check my journal for info. https://www.rollitup.org/grow-journals/232930-first-grow-3000w-ebb-gro.html . It may be helpful. Peace

My dumb ass didn't change the nute soup for 3 weeks. I have 6 grapefruit diesel along with some sour diesel and some others. The 6 grapefruit diesel (none of the others) are looking like either Zinc, Iron, or Sulfur but I'm having a hard time telling which one it is. they have all been in...