FD 43 : 5L water with PH ~6.2 3.5ml/l biogrow, 3ml/l topmax, 3ml/l biobloom, 1ml/l calmag
FD 47 : 5L water with PH ~6.4
I stopped giving nutrients because I´m gonna chop them in ~2 weeks
Buds were fattening up insanely fast this week, i think the optimized ppfd is doing its work
The top right plant´s leaves are hanging down since ~10 days. Don´t think it´s because of over-/underwatering, since I water & feed every plant the same and the others are doing great. Was it maybe too stressfull to set the LED from 160W to 240W on 35cm distance when going 12/12?
Not all plants are the same. If you are giving them the same amount of water and the plant does not have the same root system as the other then it just might not use it all up and still could be over watering. Water as needed. Increase your perlite in the mix to prevent over watering. It does mean you will need to water more frequently but its more controlled in that the medium can only hold onto to so much water and never to much. I don;t think this is a overwatering thing.
To my it looks like the only plant that is not slightly droopy is the bottom left in the main pic. all the other are a bit droopy. but look healthy.
Higher RH can also make a plant look droopy. and your running 70-80% RH. so I would get more air movent in their and I bet they would perk up a bit.
If you keep this high RH in flower it will almost certainly lead to bud rot.
Can google something call VPD. its all about RH and Temps and gives a chart to follow. There is no perfect answer but I think something around 1-1.2 is good.
https://www.dimluxlighting.com/knowledge/blog/vapor-pressure-deficit-the-ultimate-guide-to-vpd/
Your at 21c/70% in last diary update. so that's a VPD of around. 0.53-0.66 chart says you want to be around 0.8-1.2kpa
Good Luck!
Hi, with biobizz you have to give the full amount of fertilizer. In addition, 22 room temperature is too low. The soil should be even colder, the bacteria that make the fertilizer available in the soil for the plants need a certain temperature.
@Glen1818, thanks, that´s great to know. I can´t really change the room temperature atm, but I was watering with cold water. Gonna try to get the substrate warmer
get a small heater in there and raise your day and night temps and itll help drop your overall humidity levels. i dont have the money for a big dehumidifier so the heater is super helpful for the colder temps time of year. i can keep my night temps 70-72 and day temps 80-82 and my humidity around 50-60 from lighrs on to lights
@DaddyPrime2, I´m already using a heater in there, just don´t wanna waste too much energy fighting the cold temperatures here. Usually the humidity stays under 60%, only after watering them it peaks above 70%
If your top leaves are turning yellow it's likely a calcium deficiency (or nutrient lockout from a soil pH below 6.2). Solution would be to up your CalMag. However, if it's your lower leaves, it might just be a nitrogen deficiency and completely normal at this stage. My two cents. Good luck the rest of the way!
@Louder, I think it´s a cluster of some problems. PH was wrong till mid flower, PPFD was way too high and i think the nutrients weren´t perfect either... But they are looking fine and I learned a lot! Thanks for the comment 😽😸
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