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Definitely not. This is either heat stress or a mangenese deficiency (which is rare). So I would guess heat stress, and maybe a small nute lockout.

Couple of things; Cool you res back to 75 (at MOST) Be careful of you pH adjusting you have probably skyrocketed your PPM, and not added anything useful Your problem is likely algae. Algae consumes the CO2 in the res and drives the pH up usually between 1 and 2 full points a day. Start adding...

Going to need a bit of info: Water pH Feeding Schedule Tap, or R/O water, if Tap have you checked the PPM on your tap water How close is your light off your plants Do you have average temps near canopy? Some things to do now; 1.) Stop spraying them with soap... If you do have bugs they won't...

Mighty wash is worth a try I suppose. 2yrs of chemistical engineering and I have no idea what the science behind it is. From what I understand its greater than 90% water and the rest of the contents are inert. However it can't hurt. Be sure to let us know what your results are. From the...

Judging by your pics its either poopy genetics or too much stress in early life.

Couple of possible reasons 1.) Genetics = Bad genetics makes for slow and undesirable growth patterns 2.) Light = Not enough or the wrong kind 6700K is optimum for veg growth with about 20-40 watts per square foot, although red light spectrum has been known to help with upward growth 3.) Stress...

2yrs chemical engineering... Good enough? What can I do for u?

Also, its hard to get a good idea of how big your plants actually are from that pic, but a rough estimate would be .75 ounces per plant dry.

They will be an infestation in 2 weeks, and yes they will likely effect your harvest. I've never tried it personally but I hear from quite a few people hot pepper spray is the way to go for treating plants soon to be harvested. It can be prepared by simmering (not boiling) any kind of very...

Don't know how much experience you have but BE CAREFUL DURING A FLUSH. If your new the signals your plant will give you after a flush will be confusing. I would flush right before your lights come on so evaporation is maximized. It's likely your plants will droop in a way that would...

Also why not give foliar feeding a shot! Just as a side note Dark Matter foliar feed has definitely had a positive effect on my plants.

Your pH isn't fatal however I would bring it down a bit. 6.0 give or take about .3. Flushing right away might not be the right response. I would just wait till your next schedules water, and flush them. Either way would probably work just fine, but if you would rather be safe then sorry then...

Your right you totally win!

This is getting exhausting 1.) Botany pH meters are adjusted for the usual temperatures in which plants are grown at. Any difference in conductivity reading between these temperatures is negligible. 2.) Protium (H+) is not dissolved (I think you meant by solvated) into hydronium, it is part...

I think I missed your point, in your original statement you said the acids in water bonded to the bases. I assumed you meant ionically because covalent would be ridiculous. I made the point that no bonding at all took place in an acid/base conjugate. Then never mentioned ionic bonding again...

Again I don't want to speculate as that is not my field of study. Chemical engineering is (2 yrs). Thank for the wikipedia definition which for hydronium begins with a disclaimer regarding it's lack of accurate citations. However you obviously misunderstand the relationship between pH and...

Not sure your science holds water there (tehe). PH refers to the percent hydronium in a solution (H3O+) which in distilled water is almost perfectly neutralized by hydroxide (OH-). Although pH in an organic scenario is extremely ambiguous considering the huge variety of other ions involved in...

really just depends on how complicated you care to make it. Marijuana all in all is pretty easy to grow. However if you want a 1lb yield on a single plant with top quality bud there is a price to pay. Not that I have achieved this, however I do alright. Ph definitely effects the absorption...

Also depends a lot on your tap water. Large cities tend to have very basic water with a lot of Chlorine. While as coastal in Michigan have great tapwater for growing. I have never needed to invest in an R/O because I live right along Lake Michigan. The city water is PH 6.7, and only 100PPM...

Just as good? Most would say no. Good enough? Probably.