ttystikk
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Ok you have a lot of questions, and the answers are related to one another. "Interrelated", to use a specific term. What I mean by this is what I mentioned earlier; that if your temps are low, that will affect nutrient takeup.
Accordig to my ec meter, 1.53 ppt = 3.05 ms. That is about where I am now. Is that too high for a Aeroflo in week 5 of flower?
I read what you said about nutrient strength, but I am unfamiliar with the scale you're using. What is your EC? If temps are low and humidity is that high (too high!) then your plants will be unable to move water and the nutrients in it up to the growing sites.
Are you familiar with the concept of VPD, or vapor pressure differential? What this idea says is that there is an ideal range of humidity, but that this ideal range changes with temperature. The only time 80% relative humidity would be okay is when your room temps are 29 C! Otherwise, they need to be lower, because your plants will not be able to transpire moisture. If they can't do that, then they can't transport nutrients from their roots up to their buds and that leads to the trouble you're having now.
The reason I asked about how often you're changing over the air in your room is because if the air doesn't get replaced regularly, humidity generally goes up- too high- and CO2 content goes down- too low. If you can't draw in fresh air without it being too cold, can you draw air from your living space, where it's warmer? Another advantage of using air from your living area is that people breathe out CO2 and that's good for your plants too!
I still think many problems can be solved in your setup by reducing humidity and raising temperature. Aim for 65-75% RH at 26-27 C. Both will help your girls drink more water, and thus take up more of the nutrients in that water. If you add a heater, that will raise temperature and automatically relative humidity will fall. Just don't aim the heater directly at the plants.
Accordig to my ec meter, 1.53 ppt = 3.05 ms. That is about where I am now. Is that too high for a Aeroflo in week 5 of flower?
I read what you said about nutrient strength, but I am unfamiliar with the scale you're using. What is your EC? If temps are low and humidity is that high (too high!) then your plants will be unable to move water and the nutrients in it up to the growing sites.
Are you familiar with the concept of VPD, or vapor pressure differential? What this idea says is that there is an ideal range of humidity, but that this ideal range changes with temperature. The only time 80% relative humidity would be okay is when your room temps are 29 C! Otherwise, they need to be lower, because your plants will not be able to transpire moisture. If they can't do that, then they can't transport nutrients from their roots up to their buds and that leads to the trouble you're having now.
The reason I asked about how often you're changing over the air in your room is because if the air doesn't get replaced regularly, humidity generally goes up- too high- and CO2 content goes down- too low. If you can't draw in fresh air without it being too cold, can you draw air from your living space, where it's warmer? Another advantage of using air from your living area is that people breathe out CO2 and that's good for your plants too!
I still think many problems can be solved in your setup by reducing humidity and raising temperature. Aim for 65-75% RH at 26-27 C. Both will help your girls drink more water, and thus take up more of the nutrients in that water. If you add a heater, that will raise temperature and automatically relative humidity will fall. Just don't aim the heater directly at the plants.
