Can Anyone Tell Me If This Is Normal?

FF

cant really tell because of the hps but just make sure she dries out before watering....and make sure the water is ph 6.5-7.0

the browning looks like calcium maybe

Ok. I have been running it pretty dry.

yeah I like to water till it is soaking....then let it dry really well

I have a question around ideal lights on and off temps and RH for a sealed room with CO2. I have been racking the internet (and my brain) trying to figure this out. I know all about VPD and I can hit the recommended numbers but I am trying to decipher what role CO2 plays on VPD, if any. I keep reading that CO2 does not offer any benefits until temps are at least 80 degrees but according to the VPD chart, that means I would have to run a RH of roughly 75%. I really need some guidance from anyone that knows and has experience implementing these variables.

Thanks in advance for your help.

the VPD charts are for Lettuce and other leafy greens...nobody has studied cannabis and vpd scientifically
RH should be in the 50-75% range
just as long as your rh dosent swing

What about an appropriate temperature in order to make CO2 effective

day
80-92 f
night
65-75f
for optimal co2 intake

Any thoughts on what's going on here? I am thinking too much N due to the clawing but these brown stain has me baffled.

ph and over or underwatering?????
I suspect underwatering because the media looks super dry and I can see it pulling away from the container walls
when watering....soak until it is totally saturated and then let it go until it is about 50% light/dry.....then soak again

It's definitely not underwatering. I'll try to water a little more frequently. Would you hold off on anymore nutes until I see a change or is a little feeding helpful?

oh.....If you have been feeding then you might wanna flush the medium......but to me.....it looks over or under watered.....if its to dry.....or to wet......it shows the same signs
it also still looks like the ph is out of whack

Just a thaught i had just had a problem with a few of my plants in one room.they had been exhibiting some of the same looking symptoms. It ended up being fungus gnats. if your pH and your nutrient level is up to par you should have none of these looking symptoms to me it looks like an issue with the Roots the Roots look good but could have been treated before you got him and now the fungus gnats are taking back over. let your plants dry out and try 3 mils of SM 90 to your next watering it will help ward off fungus gnats and help stimulate root growth. root problems can mimic almost any type of deficiency. look up fungis gnat symptoms on cannabis plants and you'll see what I mean

Wow dude.
1.) I saw a knat on a leaf for the first time tonight before coming back here to ask for help and the I read this.
2.) I filled a small container with apple cider vinegar and dish soap and put it in between all plants. Before I left 1 minute later I see a knat running around on the nearest leaf to the solution.

I hate to sound like a sissy but I friggin hate bugs and them in my house is disgusting. Ugh.

SM90 here I come. Any other thoughts on this problem, solutions, prevention. I really want to hit all my plants with this to be safe. Thoughts?

I used sm90 along with goGnats(a cedar oil based product)since my last outbreak. I did discontinue at flowering and have seen no signs of fungus gnats anymore

I hear co2 at high levels is good to. I am gonna jack that shit up to 5000 PPMs right now until lights out.

wmmp barker said:

I used sm90 along with goGnats(a cedar oil based product)since my last outbreak. I did discontinue at flowering and have seen no signs of fungus gnats anymore

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I have to also thank you. You nailed my issue. Life is so funny. I was coming back to ask for more help and there you were. This was pissing me the hell off. Too much water, too little, nutes etc. you can go crazy trying to correct this. I wanna choke the guy I got these from. Lol. Joking obviously but it's annoying as hell.

Jjaynutz said:

I hear co2 at high levels is good to. I am gonna jack that shit up to 5000 PPMs right now until lights out.

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Wouldn't hurt but unless your r

Jjaynutz said:

I hear co2 at high levels is good to. I am gonna jack that shit up to 5000 PPMs right now until lights out.

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You might want to try it when your lights are out with your exhaust fan off. I don't know how well it will work on the larva that are in The Roots if you do have them. It should suffocate the older adult flies that have yet to breed I would try to treat the root zone is quick as possible then maybe try the CO2 after to kill all adults.

Jjaynutz said:

I have to also thank you. You nailed my issue. Life is so funny. I was coming back to ask for more help and there you were. This was pissing me the hell off. Too much water, too little, nutes etc. you can go crazy trying to correct this. I wanna choke the guy I got these from. Lol. Joking obviously but it's annoying as hell.

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I almost gave up on figuring out what it was on my clones when I saw one of the nasty guys. After look more into what it was i killed one clone and looked at the roots and found a couple larvae. I feel your pain I hope this helped