Hello. New member to icmag, but been around reading for a year or so. I am over from another site but Id like the information better here so I thought I would share. Advice and critic is welcome. This project was inspired by someone else but was made possible with Blazeoneup's tutorial which we followed as a basic recipe (Thanks Blaze!!!). It was an absolute asset, although there were many changes we made. If anyone is interested in the entire parts list we used to build the room and the system, Id be happy to copy/paste it here.
Strain is White Widow from very good genetics. The setup is 16x 5 gallon buckets in a recirculating deep water culture system. They are under 4x 750 watt Lumatek HPS lights with CoolReflector 6" glass hoods. A single 6" Can-Fan cools the 4 hoods (cools them very well) and draws air from a cold source (which is a sealed and light proof box around the window), exhausting into our very large attic. The lights are hung with eyelet bolts that are bolted to 2"x4" sitting across the beams in the attic. The ballasts also sit in the attic, along with the CAP MLC-8a 240v electrical box. This is a sealed room, so there is no normal intake or exhaust. Air is supplemented with CO2, A/C, and dehumidifer. But it gets fresh air once or twice a day when we check on it.
A 40 gallon reservoir sits in the closet with a 350gph Magdrive pump which powers it all. A single 35 watt airpump powers all 16 buckets for air with an airstone in each one. A 1/4hp water chiller will be installed anyday now, missing some stuff, but that will take care of water temps. But despite water temps of above 75 F (ice can only do so much before the chiller is installed), we have pearly white roots and vigorous growth with no algae, partially thanks to the Hygrozyme we add (8ml per gallon). When the water gets back down to its 67 F target we expect even better growth. The roots already fill the 5 gallon buckets twice over and some main root stalks are well over a 1/4" thick. The stems have passed 3/4". This is tap water, we do not use R/O water, this was a choice not a money choice, I am not convinced it adds any benefits aside from allowing a little more nutrients due to the low ppm.
A 40 pint dehumidifier keeps the humidity around 50% (has to run nearly 24/7), an 8,000 BTU A/C keeps the room cool once in awhile (only turns on a few times a day because it removes to much CO2). We keep temps around 80-85 F when flowering has started because of the CO2 absorbtion, however in veg the room stays about 73-78 F. CO2 is tank supplied with a regulator. We started around 1000ppm and work to a peak of 1800ppm, leaving it completely off during the last 2 weeks. There is a 10" inline fan if we even need to vent the room quickly during high CO2 levels. Oscillating fans move air through the foliage and floor fans bring CO2 up. For nutrients, we use Advanced's 3 part with a (grow, micro, bloom) 2/2/1 for veg, 1/2/2 first flowering stage, 1/2/3 second flowering, 1/2/4 for peak. We supplement with AN Big Bud and Growth Excel but not much Big Bud around the peak because of the already high ratio of bloom. FloraKleen for flushing. Flush for 5 days.
One thing I will add is that unlike Blaze, we veg for a period of time in seperate tubs. This allows us to grab 2 or more extra weeks of veg time before putting them in the big room, allowed us to continue flowering for as long as possible. Unfortunetly with this grow we were not around enough in the beginning to top everything the way we wanted, so were going to see how it goes with late topping and some LST. I abandoned the screen until next grow when I can plan on it early and get a ton of topping done.
Hope that wasnt long, I like talking. Anyways, here are some more pictures. They just went into flowering, changing out the nutrients to bloom
From one trimming of the inside and lower branches we netted well over a hundred clones which are in 3 trays, they will go into a 4x8 flood and drain tray under 2 600s.
Strain is White Widow from very good genetics. The setup is 16x 5 gallon buckets in a recirculating deep water culture system. They are under 4x 750 watt Lumatek HPS lights with CoolReflector 6" glass hoods. A single 6" Can-Fan cools the 4 hoods (cools them very well) and draws air from a cold source (which is a sealed and light proof box around the window), exhausting into our very large attic. The lights are hung with eyelet bolts that are bolted to 2"x4" sitting across the beams in the attic. The ballasts also sit in the attic, along with the CAP MLC-8a 240v electrical box. This is a sealed room, so there is no normal intake or exhaust. Air is supplemented with CO2, A/C, and dehumidifer. But it gets fresh air once or twice a day when we check on it.
A 40 gallon reservoir sits in the closet with a 350gph Magdrive pump which powers it all. A single 35 watt airpump powers all 16 buckets for air with an airstone in each one. A 1/4hp water chiller will be installed anyday now, missing some stuff, but that will take care of water temps. But despite water temps of above 75 F (ice can only do so much before the chiller is installed), we have pearly white roots and vigorous growth with no algae, partially thanks to the Hygrozyme we add (8ml per gallon). When the water gets back down to its 67 F target we expect even better growth. The roots already fill the 5 gallon buckets twice over and some main root stalks are well over a 1/4" thick. The stems have passed 3/4". This is tap water, we do not use R/O water, this was a choice not a money choice, I am not convinced it adds any benefits aside from allowing a little more nutrients due to the low ppm.
A 40 pint dehumidifier keeps the humidity around 50% (has to run nearly 24/7), an 8,000 BTU A/C keeps the room cool once in awhile (only turns on a few times a day because it removes to much CO2). We keep temps around 80-85 F when flowering has started because of the CO2 absorbtion, however in veg the room stays about 73-78 F. CO2 is tank supplied with a regulator. We started around 1000ppm and work to a peak of 1800ppm, leaving it completely off during the last 2 weeks. There is a 10" inline fan if we even need to vent the room quickly during high CO2 levels. Oscillating fans move air through the foliage and floor fans bring CO2 up. For nutrients, we use Advanced's 3 part with a (grow, micro, bloom) 2/2/1 for veg, 1/2/2 first flowering stage, 1/2/3 second flowering, 1/2/4 for peak. We supplement with AN Big Bud and Growth Excel but not much Big Bud around the peak because of the already high ratio of bloom. FloraKleen for flushing. Flush for 5 days.
One thing I will add is that unlike Blaze, we veg for a period of time in seperate tubs. This allows us to grab 2 or more extra weeks of veg time before putting them in the big room, allowed us to continue flowering for as long as possible. Unfortunetly with this grow we were not around enough in the beginning to top everything the way we wanted, so were going to see how it goes with late topping and some LST. I abandoned the screen until next grow when I can plan on it early and get a ton of topping done.
Hope that wasnt long, I like talking. Anyways, here are some more pictures. They just went into flowering, changing out the nutrients to bloom
From one trimming of the inside and lower branches we netted well over a hundred clones which are in 3 trays, they will go into a 4x8 flood and drain tray under 2 600s.
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