DWC cloner water temperature

So I'm wondering what the temperature of the water should be. I read different opinions, some said around 25ºC (77ºF) and other around 19ºC (67ºF).

So which one is the right one ?

Cooler temperatures help the water stay 'fresh', which discourages stem rot. Warmer water helps the cuttings to root slightly faster, but invites disease. I personally would inoculate with beneficial microbes and let the water be room temp. If you do this, make sure your water is super oxygenated.

Doesn't look like I have a temperature problem then as my water is at 25ºC. Do you know what could be the reason for a very slow root growth ?

How long have you had them in your cloner? I'm at 13 days in first try with Turbo Klone T48 and only have white root bumps to show for it. I've had temps at around 27* though. Using Aquashield and don't have any slime/algae...

Strain seems to be an issue. Some seem to root faster than others. My bubble cloner takes a while too. Just take your clones a few days earlier if they're the type to take a while to root.

medicine21 said:

How long have you had them in your cloner? I'm at 13 days in first try with Turbo Klone T48 and only have white root bumps to show for it. I've had temps at around 27* though. Using Aquashield and don't have any slime/algae...

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Mine are 11 days old and the biggest roots are just 0.5cm long. The thing is that they took 4 days to grow 0.5cm (0.2 inch) which seems quite slow.

Shafto said:

Strain seems to be an issue. Some seem to root faster than others. My bubble cloner takes a while too. Just take your clones a few days earlier if they're the type to take a while to root.

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totally agree, strain definitely matters a lot.

How do the leaves look after 11 days? maybe add some root booster at this point to help things along?

BuddGreen said:

Don't use any heaters in you cloner. Make sure you got LOTS of bubbles!!!
All I do is pH my water to 5.8 untill they start popin roots.
Then I use 1/3 Strength Nutes till Veg.
Click the link below to see my Op.
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Clonex liquid is antimicrobial and cloning calls for temps between 72 f and 82 f .

oh, here. clonex liquid at 75 degrees.................

reading thru here and nobody is using a rooting liquid. I have roots in 5 days with some strains, I couldn't do this with water alone.

dbkick said:

reading thru here and nobody is using a rooting liquid. I have roots in 5 days with some strains, I couldn't do this with water alone.

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would you use a rooting liquid like clonex for seedlings too?