I'm nearly finished with tuning my Co2 injection. My lighting is a Radion XR15FW using EcoTechs plant growth lighting schedule for 6 hours. This turns on at 2pm and ramps up to a max intensity (70%) by 5pm and then it slowly reduces to 8pm. At 8pm-10pm the light runs at 4% to barely illuminate it.
Here is my pH profile:
20th February
9am 7.2pH - baseline
12pm - Co2 injection starts
1pm 6.6pH
2pm 6.4pH dc green
3pm 6.3pH dc green
4pm 6.2pH dc slightly yellow
5pm 6.2pH dc yellow
6pm Co2 injection stops
8pm 6.4pH dc yellow and end of plant growth lighting.
8pm-10pm - extremely low light.
My observation here is that although im not dropping 1pH point by lights on, it doesn't necessarily matter as the lighting is on a slow ramps (which I find wakes up the plants slowly so their consumption of Co2 won't be high). By 5pm, lighting is full and I've dropped 1pH.
Is this the most optimal injection or should I aim for a pH drop of 1 as soon as the lights turn on. This would mean injecting 3 hours before and turning off injection 3 hours before lights out?
Any advice? Plants are pearling well but lots of them are new so not really ready to consume yet.
Thanks
Here is my pH profile:
20th February
9am 7.2pH - baseline
12pm - Co2 injection starts
1pm 6.6pH
2pm 6.4pH dc green
3pm 6.3pH dc green
4pm 6.2pH dc slightly yellow
5pm 6.2pH dc yellow
6pm Co2 injection stops
8pm 6.4pH dc yellow and end of plant growth lighting.
8pm-10pm - extremely low light.
My observation here is that although im not dropping 1pH point by lights on, it doesn't necessarily matter as the lighting is on a slow ramps (which I find wakes up the plants slowly so their consumption of Co2 won't be high). By 5pm, lighting is full and I've dropped 1pH.
Is this the most optimal injection or should I aim for a pH drop of 1 as soon as the lights turn on. This would mean injecting 3 hours before and turning off injection 3 hours before lights out?
Any advice? Plants are pearling well but lots of them are new so not really ready to consume yet.
Thanks