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Lumatek 630 watt cdm

Just a quick question, as toy can see in the pic, if I understand correctly all i have to do is to connect the earth and its good to go?

Ok cheers. They’re ami hayes and been about two weeks. How long should i give it?

Hi all, as you can see from the pics my clones are looking healthy but the roots are not breaking the actual surface of the rockwool cubes. Could they be too tighly compacted so they cant get through or should i just wait. The one you can see wih the roots exposed is not me breaking it open. I...

Thanks all for the wise words. Have taken a few more and will see how they get on

hi all I have taken cuttings years ago and had no problems. This time I am have a ami Hayes mother plant and the cutting I have taken don’t seem to take. I am splitting them at the base at 45 degrees, dipping in clonex and planting them in a jiffy cube. They are in an seedling tray with a lid...

What drawbacks do you have?

Bump folks. Sorry

Hi all, Am looking at an 8 pot Wilma system with 18 litre pots or a 20 pot Wilma system with 6 litre pots. What would produce the most yield or would it roughly be the same?

Hi all, any ideas what's causing this? Could it be too much heat as I didn’t have a fan on them to begin with for the first day or so.

Thanks for that much appreciated

Yes I do sometimes it fluctuates between 5.6 and 5.9. Am I meant to keep it to one number?

Yes I topped off the water about 12 hours ago with just plain ph’d water bit the stalks are really dark red in colour. Is this a major concern?

Thanks for the reply, the problem I’ve got with feeding plain water for a week or two is that the plants are big enough so the lighting can go onto 12/12. What do I do?

As you can see the other plants has got the same leaf problems now. Will this end up killing the plants if I can’t get rid of it?

Anyone know if what I’ve done is correct?

I couldn’t get all the water out the tank. Out of 30 litre tank I had about less than a litre. I refilled it then checked ppm and it read 402. I suppose it’s better than nothing

Just had a thought, if I just put in plain water and this does cure the problem how will I know? Will the leaves repair itself or will it be some other way?

I changed the water yesterday. And ph’d to 5.8. I will keep an eye on them.

Hi all just need some advice from the photos attached. I am currently growing 4x ak47 in hydro pebbles. What do you suspect the leaf damage to be? They were going great then I changed the water kept the ph at 5.7-5.8 but I added more nutes. When I first planted then the ppm was 400 then a week...