There is no doubt in my mind from those pics that this is a subvirus of TMV called hemp mosaic virus. What looks like pH spotting or bubbling, the interveinal chlorosis often mistaken as nutrient deficiencies, the appearance of what looks like light burn in the mid section of the plants, and the...
The best thing you can do for your plants that are infected with TMV is not to shock them and to raise the lights slightly to take the stress of them. TMV results in light sensitivity and is the reason why some leaves will appear like they have light burn even though they are quite a ways down...
Ok so it looks like the admin people here have decided to scare everyone into signing up on their email list at aweber by threatening to delete their accounts if they do not do so. Please delete mine because thats just bullshit.
Many store bought soils are prebuffered to somewhere between 6.5 and 7.0 unless its coco or potting mix high in peat.
Most important in what I wrote was to let them dry out completely before thoroughly watering/feeding again.
If they are from seedlings then that is about average. What they need more than anything is a straight run without any more shocks or interference to allow them to build up their adult parts and root systems. Because they are seedlings you are going to want to give them a long veg time, like at...
Week 4 into flower is when indica plants usually have shut down all of their leaf and stem growth and seriously begin the bud production. A few things usually crop up around week 4 of flowering that usually begin a few weeks earlier but take a week or two to appear. This most common is calcium...
A pH of 7 is what you want for soil. If I were you I would let those pots dry right out, like tinder dry, then water them again this time thoroughly, and at a pH of 7. Then keep it at 7 from now onward and they should come right.
Also have a look around for a product additive that has silica in it, this will help with dense buds to reduce the rates of bud rot. Silica is naturally found in organic soils especially in volcanic areas.
Those leaves look like they've been smoked with too much nutrient. You are lucky you caught this, a ppm of 3000 will kill your plants no matter which part of the grow they are at. For the dying leaves, theyre not going to hurt the plant being left on there, theyre just not pretty, but budding...
I prefer to leave them on for now to watch them get worse or remain the same. They will drop off in their own time. What E.C are you running and I cannot tell from the pics but is that a DWC, top feed, flood and drain or what sort of hydro system are you running there. If not DWC then what is...
A fast climbing pH could mean your tank needs a proper system clean. What color is the nutrient, does it look dark and silty, if so it could be an algae outbreak. Also check the status of the roots if you can. See if there is any rot in them. Are you treating your nutrient with anything to...
That is what all growers do at one time or another, some do it all the time, its the panic to smoke it or get it out the door. You can harvest a good crop by the time the trichomes turn milky white, its what is referred to as an early harvest. Still smokes ok. The little leaves are standing up...