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Another cheap easy way is to put a powerhead in your res. Really help with oxygenation.

Add a trickle filter to the system? highly effective at oxygenation of water and provides optimal home for bacteria

yeah bacteria also consume o2. But the lower the o2 levels drift from equilibrium the more effective gas exchange becomes. Changed the last part to be more accurate

Absolutely a benefit but there is still adequate O2 in higher temps the important thing is that the O2 can be replenished fast enough from surface agitation.You definately have more of a cushion with lower temps but temps in the high 70's still have adequate levels you just need to make sure its...

20 years growing aquatic plants... I still don't understand how this is not more widely used in hydro. Not necessarily the organic part but the bacteria. The stuff used right now needs to be continually added because its reproductive requirements but if we just change how we do things a bit you...

Warmer root temps in hydro are better for growth I think about 77F is ideal but also ideal for bacteria that have an explosive reproductive rate at those temps. The reason most hydro growers go with 68-70 is because it allows some time to react if things go south as the reproductive rates of...

Large watering globes might work if you have enough of them and depending on stage of growth. Something like...

I swear you are a painter by trade lol. Am i right?

^^^ 4000-5000K Veg 3000K flower. If i were to choose 1 it would be 3000k you may get a little more stretch in veg but there are ways to compensate. Plant needs change from veg to flower and in veg plants are a lot more forgiving.

Oh please do explain. Take a look at the photos of the post I quoted. I'm not saying there are not other issues what I'm saying is there is some heat stress issues. Crispy dry leaves tacoing up less than a foot from HID lighting. How much more accurate can i get?

Looking like heat stress

LED changes a grow completely. Your leaf temps will be much lower so you need to increase ambient temps. 70F is to dam low for one with LED 80-83F should get you where you need to be. Also the plants seem to demand more calcium. How about you show some pics so people can look for issues and help...

Just look hungry to me and that's probably why you are seeing deficiencies. Also a bit of heat stress. I would bump up the nutes a bit. What's your humidity?

Ph fluctuations, maybe stress or variegation not overly sure but pluck em and see if it happens to other growth in the future

Afaik not one single confirmed case in cannabis. So I highly doubt it.

Sulfuric,phosphoric and nitric are all good options for PH down. Personally I like them in this order phosphoric, sulfuric and last nitric. But i do believe sulfuric acid has the most buffering capacity out of those if i remember correctly so you would need less.

If it's calimagic 1ml per gallon and your good

Yes you got it add it first then nutes then ph the water. Battery acid is sulfuric acid. But be careful when bought under battery acid and not just sulfuric acid sometimes contains lead I believe.

Yeah I find mine are too but if I went 2" probably not so much

I use the same snap lids with 6" I can't find em cheap usually $5-10 each