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- #161
Date: 8/15/22 - Day# 50 in RDWC, Day# 12 since flip to 12/12, Day# 1 of Flower!
Strain - Barney's Farm Mimosa x Orange Punch photo clones x 4
Grow space - Vivosun 48x48x80 tent in basement
Light height and reading - Vivosun VS4000 400w LED @ 100% 18 Inches away - 55k LUX
Extraction - AC Infinity 6" extraction fan with Controller69
3x 6" oscillating fans + Tower oscillating fan + 12" floor fan
Nutrients - Advanced Nutrients M+G+B, Voodoo Juice, Pirhana, Hydroguard, z7, Purpinator, Bud Candy, Big Bud
Medium - 8" Netpots with clay balls in RDWC system (5x13g buckets)
Water - Carbon-filtered well water (100ppm/8.0pH)
Temperatures
So far the RH has been in the 60s this grow and the temperatures int he lower/mid 70s. I haven't done anything about it because they were in veg and were growing well. Well, going into flower I decided to reduce the RH. I started by setting the exhaust controller lower but that had little effect. So, I set the dehumidifier in the basement down to 45%, then being impatient I went down to 40%. Then yesterday I had the tent open for a while while swapping out the res, and I think it finally dried out.
I checked it today and the VPD was 1.8! It turns out the exhaust controller works much better when the room RH is low. Not only does it control the RH better, but it also allows more heat to stay in the tent. I'm fiddling with the exhaust controller today to find the right settings to keep VPD in the 1.2-1.4 range for the beginning of flower.
Yesterday was res change day. They vegged in this res for 7 weeks (49 days). I decided to use up some old nutes and switched over to Advanced Nutrients for flower.
First thing I had to do was get rid of the clutter. I have a hard time getting anything done in a messy room, so a quick cleaning was in order.
Next, I mixed up the base nutrients in the 20G kettle. This water had been bubbling overnight to come up to room temperature. I put in 511ml of Micro, Grow, & Bloom, along with 300ml Purpinator. I also added 33g of Epsom to balance out some extra calcium in my well water.
While I left the nutes bubbling in the kettle, I drained the RDWC system. I started by draining the res with a submersible pump. This drains about 3/4 of the res, or about 25-30 gallons.
When that was done, I switched over to a little gas pump I have to drain the rest. This gets down to the bottom of each bucket to drain everything except the last 1/4".
This gave me a good chance to take a peek at the roots. They look really good, aside from a little gunk near the water line. This sprayed right off, so I'm not worried about it.
Finally, time to refill the system. I filled a 5g bucket with acid water (5g water+15ml pH Down) to counter the carbonates from my well water. Then I let that slowly leak into the res while I filled it with both nutrients and the hose at the same time. I ended up only putting 4g of the acid water in, as the pH came in a little low. Once all of the nutrients were in and the res was filled, I added the bennies. Hydroguard, Voodoo Juice, Piranha, and z7 were added.
After it was all filled and circulated for about 30 minutes, the res read 1120ppm & 5.6pH. From using AN my first grow, I expect the pH to raise after the first 24 hours. Sure enough, when I checked it this morning it was up at 6.0. I'll add 1-2 ml of pH down every feeding until it gets down to 5.8. I know AN says pH doesn't matter, but I'll feel better at 5.8
The whole process took about 2 hours. Being my first res change, next time I feel I can cut that down a bit. I'm happy I decided to only do 75% of recommended AN schedule, because the PPMs sent up by about 100 as it was. I'll watch the plants to see if they need more.
The right side of the tent is still slightly higher but the left side is gaining every day. They are all up to the second net, so it's time to start training buds through. I've been tracking the plants daily now waiting for the first day of flower, and I'm going to go ahead and call it at day# 10 of flip. All of the buds are throwing out pistils now. How does everyone else mark the start of flower?
Now on to the fun part, where they all get their party hats and stretch! I'll be guiding them up through the second net as they go, and trying to keep them as evenly spaced as possible.
Hope everyone has a great week.
Strain - Barney's Farm Mimosa x Orange Punch photo clones x 4
Grow space - Vivosun 48x48x80 tent in basement
Light height and reading - Vivosun VS4000 400w LED @ 100% 18 Inches away - 55k LUX
Extraction - AC Infinity 6" extraction fan with Controller69
3x 6" oscillating fans + Tower oscillating fan + 12" floor fan
Nutrients - Advanced Nutrients M+G+B, Voodoo Juice, Pirhana, Hydroguard, z7, Purpinator, Bud Candy, Big Bud
Medium - 8" Netpots with clay balls in RDWC system (5x13g buckets)
Water - Carbon-filtered well water (100ppm/8.0pH)
Temperatures
So far the RH has been in the 60s this grow and the temperatures int he lower/mid 70s. I haven't done anything about it because they were in veg and were growing well. Well, going into flower I decided to reduce the RH. I started by setting the exhaust controller lower but that had little effect. So, I set the dehumidifier in the basement down to 45%, then being impatient I went down to 40%. Then yesterday I had the tent open for a while while swapping out the res, and I think it finally dried out.
I checked it today and the VPD was 1.8! It turns out the exhaust controller works much better when the room RH is low. Not only does it control the RH better, but it also allows more heat to stay in the tent. I'm fiddling with the exhaust controller today to find the right settings to keep VPD in the 1.2-1.4 range for the beginning of flower.
Yesterday was res change day. They vegged in this res for 7 weeks (49 days). I decided to use up some old nutes and switched over to Advanced Nutrients for flower.
First thing I had to do was get rid of the clutter. I have a hard time getting anything done in a messy room, so a quick cleaning was in order.
Next, I mixed up the base nutrients in the 20G kettle. This water had been bubbling overnight to come up to room temperature. I put in 511ml of Micro, Grow, & Bloom, along with 300ml Purpinator. I also added 33g of Epsom to balance out some extra calcium in my well water.
While I left the nutes bubbling in the kettle, I drained the RDWC system. I started by draining the res with a submersible pump. This drains about 3/4 of the res, or about 25-30 gallons.
When that was done, I switched over to a little gas pump I have to drain the rest. This gets down to the bottom of each bucket to drain everything except the last 1/4".
This gave me a good chance to take a peek at the roots. They look really good, aside from a little gunk near the water line. This sprayed right off, so I'm not worried about it.
Finally, time to refill the system. I filled a 5g bucket with acid water (5g water+15ml pH Down) to counter the carbonates from my well water. Then I let that slowly leak into the res while I filled it with both nutrients and the hose at the same time. I ended up only putting 4g of the acid water in, as the pH came in a little low. Once all of the nutrients were in and the res was filled, I added the bennies. Hydroguard, Voodoo Juice, Piranha, and z7 were added.
After it was all filled and circulated for about 30 minutes, the res read 1120ppm & 5.6pH. From using AN my first grow, I expect the pH to raise after the first 24 hours. Sure enough, when I checked it this morning it was up at 6.0. I'll add 1-2 ml of pH down every feeding until it gets down to 5.8. I know AN says pH doesn't matter, but I'll feel better at 5.8
The whole process took about 2 hours. Being my first res change, next time I feel I can cut that down a bit. I'm happy I decided to only do 75% of recommended AN schedule, because the PPMs sent up by about 100 as it was. I'll watch the plants to see if they need more.
The right side of the tent is still slightly higher but the left side is gaining every day. They are all up to the second net, so it's time to start training buds through. I've been tracking the plants daily now waiting for the first day of flower, and I'm going to go ahead and call it at day# 10 of flip. All of the buds are throwing out pistils now. How does everyone else mark the start of flower?
Now on to the fun part, where they all get their party hats and stretch! I'll be guiding them up through the second net as they go, and trying to keep them as evenly spaced as possible.
Hope everyone has a great week.
