DWC Temperature Required

I have read that 65f is ideal for vegging and flowering plants, but I need to know what the water temp needs to be for my DWC cloning reservoir? A bit warmer I presume, but I'd rather not guess.

thank you


also, is it best to have the stems of my clones IN the water or just slightly above the water line?

I hope someone else can give you advice from experience because I have never tried cloning, but I do know that the stems should not be submereged. They should be slightly above the water line, bet still pretty wet from the bubbles. As for the temp, 70 degrees is probably ideal.

thank you.. bump for confirmation

in a dwc cloner you want the stems in the water with bubbles hitting them. the ideal temperature would be 63F or so to avoid pathogens from growing contaminating the bubbler and something like bacto or sub culture is ideal for strengthening the new root systems with symbiotic organisms.

you want high humidity above the cloner and cloning solution will really help alot. I think roots should appear within a week or two. make sure you pH the water to 5.5 or so (at least thats what I think)

Wow.. So I have seen some people say "you definitely want them IN the water" and others have said "you definitely want them OUT of the water" on various threads and now in this thread as well. I had them IN the water, but after getting the advice in the above post I lowered the water level to just below the bottom of the longest stem. I've got PLENTY of bubble action though so they aren't wanting for water... BUT if it is best to submerge them completely IN the water, I would certainly like to know so I can add a little more H2O...

I've also seen some people say that clones "definitely prefer water temps to be 10-15 degrees higher" than (what seems to be the unanimous) 65 degrees for vegging/flowering plants and now you are suggesting to have it at 63 degrees for clones?? My water stays at 65 on it's own, but I just went out and bought a heater thinking I needed to heat things up!!

Kinda makes it hard to know what to do or who to believe. lol

well if it is a bit warmer it will work a little bit better but if it is cool it will be fine as long as it is humid. It is easier to get humid conditions with warmer conditions, but its also easier to grow nasties. You don't need to have it completely submerged or completely out. If there is like 3 cm clearance from ur neoprene disk to the water's surface you can have a 5 cm long stem stickin down and 2 cm under the water it won't matter. If you put too much under the water chances are the very bottom of the stem could turn brown and slimy but you'll still get roots and you can cut out the rot and the roots will be ok.

bump.... for another opinion

I had a friend who recently had problems with his home made bubble cloner,well not the cloner but with keeping the stems submerged.He started gettiing some slime on the stems.
After thoroughly cleaning the res and lowering the water level to let the bubbles mist them he had roots in 7 days.Using a very strong air pump makes plenty of splashing bubbles.

His res usually hovered between 65 and 70 but we never thought it needeed to be different from standard growing.
Higher humidity is a must i believe,misting inside the dome a couple times a day worked just fine.

miztaj said:

I had a friend who recently had problems with his home made bubble cloner,well not the cloner but with keeping the stems submerged.He started gettiing some slime on the stems.
After thoroughly cleaning the res and lowering the water level to let the bubbles mist them he had roots in 7 days.Using a very strong air pump makes plenty of splashing bubbles.

His res usually hovered between 65 and 70 but we never thought it needeed to be different from standard growing.
Higher humidity is a must i believe,misting inside the dome a couple times a day worked just fine.

Click to expand...

Yeah, I have a huge air pump in there. Overkill actually, if there is such a thing. But either way, great bubble action.. So for now I lowered the water level. that seems to make the most sense of the two options and was planning to keep it like this unless someone came along and convinced me it was better to submerge them.

I dont have a humidity dome though(not yet). I was going to try and do it without one this time and see how it went. I know I have read that a lot of people dont use them. I keep a couple of soaked towels in there and I mist them pretty much every hour... but if this isn't good enough, then I suppose I will be building a dome of some sort for round two.

A couple of the cuttings have already died, but looking at the stem underneathe the neoprene cup I think it was due to my cutting them badly.. I think I shaved too much off of a few of them. Just another lesson in the books I suppose.

ty

yeah some people dont use domes.I think if you can keep the humidity up without it they shuld do fine.hope things work out for ya.

I would definitely have to say OUT of the water man... FOR SURE! you'll get root rot if you have them in the water, out of the water and all the bubbles burst and mist the bottoms of the stems perfectly.. thats the way its been done for years gentlemen......

I highly suggest this air pump, I just ordered an other 5 for my next DWC grow...

Agreed, out of the water, or the plant has no reason to grow roots. If you are bubbling hard enough there is more than enough vapour.