Nute burn? Mg? K? - Getting really bad.

[Zandor]

You will know, very bad odor but you do need to cover tray and rockwool or the light will kill the roots that stick out as well as alga will grow on the rockwool.

I'm glad they are doing better

[hbbusa28]

Sorry seems like a stupid question but how do you cover it? With a black trash bag?

After I read your last post I took a good look at the rockwool and there is a green patch on top. As welll as some roots starting to come through the side.

[mistyganjatree]

those cubes should be covered, if no wrapper on the side then burry them under some black and white plastic!
they lookin better already. but the algea will kill your roots, all roots need to be kept out of the light, i would have roots all over the sides and bottom of that plant by now!,dont you intend to do anything else wth her, ie move into a NFT system, or a hydro grow!,
you can grow and flower off in that cube, ive seen it done, but they gotta be light proof and well maintained, flushed with enzymes once a week!, and fed a low PH of 5.5 if the blocks or cubes arent washed out , or allowed to dry out too much the EC and PH will rise due to evepouration, increasing the ph and EC will have a detrimental effect on the plants, there was reacently an article in the spannish grow mag, cannamao or yerba! where they try out nutrients in thei way, maintining the roots within a three inch cube and flowering of in it! extreem test to see how good the nutes are , but hey they had a decent looking crop!, try using mineral magic to rid the algae, it also helps the plants with antipathegens and celular growth! by general hydroponics. sprinkle on to the green areas, and use it under the drippers! if ya have any!

good luck!

welcome to the world of endless possibilities,,,,,hydroponics

[Weedhound]

I do love hydro.....!