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No, PH flux is just another name for "I dont know what the fuck is going on" u will see lots of people resort to telling u its PH fluctuations, but never believe that. An unstable PH will only prevent the plant from certain nutes, which in turn will cause nute def's, but not unexplained rust...

All u can do is keep plants healthy and disinfect the room after this grow before u introduce a new batch of plants. The fungi are everywhere, and plants are always at risk. This fungi enters thru the stomata (I believe). Once inside, a healthy plant puts up its defense and the fungi cant take...

I hear u can bake the soil to get rid of most fungi and bacteria, its called "solarizing soil". I got a type of blight indoors on my bud crop back in august I harvested those with no yield reduction on stronger plants, but weaker plants suffered severely. Anyways, I disinfected everything, I...

Its either the most severe K def I have ever seen, but more than that it looks like a fungus, but after dealing with the shit (leaf fungus) for 6 months everything starts to look like it. Lets rule out K def. first Makle sure Ph is straight, above 5.2 hydro, and above 6 soil. k is most...

It could be a leaf blight fungus, it causes similar damage but it normally attacks lower leaves, and works its way up. If it starts spreading after u move the fan u could have a problem.

I use insulated, its actually cheaper than the foil duct here because the duct inside the insulation is made of cheaper heat resistant plastic. I run two 1000 watt lights thru it and no probs. It probably gets over 100f inside there...

PS, absolutely no way in hell the temps did that, I grow outdoor and in my last three weeks of flower Im lucky to hit 55f, at night they are 35f and that shit doesnt happen. The low temps may cause a somewhat uniform change in leaf color (like in the pic with ur hand), but that is nothing to...

EDIT: Ur friend is a fucking moron! He didnt water them in time and they almost died. SHIT, ur 60 degree temps saved those plants. At 70, they would have drank more and been dead for sure!!!!! They would have been dead in a few more hours, and all ur roots are shot so dont expect much more...

Wouldnt worry too much on the yellow leaves. If anything, try raising the ppm of your nutes a tad. The plant that got hit by the fan should bounce back. I have broken branches all the way off, carefully taped them back on when they were freshly broken and they grew fine. I have done that atleast...

The stem had to break or some type of physical damage. Nothing else is even possible.

Plants look really good! That looks like bacterial leaf blight, not a deficiency. If it is it wont effect bud growth at all, and u are so far into flower it wont have time to do much damage to leaves. Its weird that its only in that spot though. Did u get the plant wet in that area? Maybe...

Torn roots wont kill plants, but if the plant cant take up water it will die. If u tore almost all the roots off and the plant is drooping then the leaves need some trimming and the plant needs to be placed into a cup of water (like a rose in a vase) so all branches firm up and stop drooping...

It could be a leaf blight fungus. Lots of that shit around here. I lost a crop to it earlier this year. Its usually not as bad as it was this year so mot many people know about it. I would start fungicide treatment. I alternate between Serenade and Daconil every three to seven days as a foilar...

Definitely from diluting water with water. Every time I do that, same shit happens. Damn yellow tips.

U should pick up a thermo that tells u max temp. $6 at walmart. It also tells max humidity. They arent the most accurate, but will give u an idea of peak temps. 82 is too hot and u just said that is average. The reason that plants handle that outdoors is because the roots are protected in cooler...

Crank up the nutes, if im certain about one thing its that the nutes can be jacked up. I'd be running 1400 ppm under HID lighting. If under floros, 1000 ppm will do..

Its fungus or algae related, whether its root rot, an algae or a leaf blight depends on where the moisture was building up. If u were overwaterring I would lean towards rot or algae, but algae is usually visible (hides under pots and in reservoirs).. Losts of fungi this year also so humid...

Those T5's rock for vegging!!

Either ur ph is too high causing micro nutrient lockout or u have too much shit in your tap water (or both) and nutes are competing, both will give u the results u are having. To grow successfully with tap is the hardest thing to do. U are growing in soil so it is feasable to go and pick up...

People like u crack me up... People grow massive plants with MG all the time. Ive grown Mg side by side with FF and the MG Organic. The mg was actually more PH stable, and the plants seem to like it better and rewarded me with 10% more bud from slightly ammended (30% perlite addition) MG soil...