PH of Water around 6.5. It’s a 50/50 mix of dechlorinated tap water mixed with apple cider vinegar for ph down and filtered water at ph 7
Indoor grow - 4x4 tent
600 watt LED - 24 hour light cycle
Temps; 70-75 degrees
Humidity; 40-65%
Ventilation system; Yes, the duct simply goes out the tent into the room. Window is closed as it’s too cold outside now.
Two humidifiers
Co2; No
I’m thinking it could be a nutrient deficiency but the leaves look skinny and too bright green almost yellow.
I neglected to fully clean the carbon filter cover after my last grow (just vacuumed it) so the plants devolved a fungus with some leaves having yellow and brown spots. It seems not to be spreading though and I just remove any leaves that are affected.
The only thing I changed was putting the correct amount of the grow auto amendments. In my first grow I used waaaay too much. Maybe this time not enough?
I read somewhere that tap water has a lot of micronutrients like iron and other minerals so I like to have some of that as well as the filtered. The only issue is that the tap water is PH 9 so I have to use the apple cider vinegar to get it down.
To me it almost looks like i a iron def but the volcanic rock dust should help with that but it depends on how much volcanic rock dust they have put in there soil ,let me have a look on YouTube there maybe something there
Ok i just had a look on the internet about ur problem it is caused by either to high or to low of a ph if u get ur ph right ur plant should come back looking darker green and those spots should stop
I would give them some rest. A few hours a cycle. Good ph…calmag and some molasses and watchem. Ph after that molasses mixes. Just what has worked for me when lighter leaves. I fight ph all the time here and can lockem quick with reservoir spikes. Basics and observation.
I’m thinking it’s too high? It’s usually around 6.8 but I noticed that the ph of the water goes back up very quickly after I put the apple cider vinegar. It only lowers ph for like 10-15 minutes.
Phdown is very cheap. I buy by the half gallon lol. And a small bottle of phup. A must have. Vinegar is not the way to go for me. Vitamin C. Aspirin. Lots of emergency lowering agents. Because they work does not mean right for soil and bacteria. 7.0 water will drop a half point or more with flower boosters…a lot of nute mixes etc. Mix nutes. Let sit couple minutes. Test ph. Adjust. 7.0 is mot crazy. Mine goes from 8.5-12 depending on rainfall in the surrounding 250 square miles. All water drains here…Canyon/Palo Duro.