How to stop green mold on rockwool cubes used for cloning?

My question wasn't about identifying algae but what I didn't know was how to treat algae or mold "on rockwool" and the Plants Are Only "NEW SEEDLINGS" and barely an inch tall and using anything to block the light around the plant over the rockwool isn't yet possible!!!

Warezaholic said:

My question wasn't about identifying algae but what I didn't know was how to treat algae or mold "on rockwool" and the Plants Are Only "NEW SEEDLINGS" and barely an inch tall and using anything to block the light around the plant over the rockwool isn't yet possible!!!

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That's a nightmarish picture. They're staying too wet. You probably could have waited to put the macro plug into the cube, and definitely waited to put the cube into the bucket.

Sounds about right. I normally use a DIY humidity nursery but an old friend from another planet had advised me to transplant asap and now I can see my mistakes here!

I have had 3 years of successful (2 & 3 plants size grows). Now I'm running 2 closets at the same time so I'm rushing things and my inexperience is showing. Currently I'm strictly doing 5 white widow autoflower in 2 seperate rooms.

I'd imagine they haven't rooted into the pellets yet, so just take them out and get some roots going first. Set them on on another cube to wick out the excess water and they'll start thriving. Just stay on top of them and make sure they don't dry out if you do the wicking thing.

Thanks for the tip; his particular seed had the roughest start and maybe your suggestion will work. I'll check later to see if it's feasible.

I hope it works. Tiny seedling worry me to death. I fear they're either too wet or too dry, or if the lights are too high or too low. I still use a T5 for the first week or so after sprouting, just because I can't really screw up the light aspect. I feel like a mother hen. Once they start stacking I can start relaxing.

I managed to remove two plugs from the cubes and very few tiny roots were lost. I trimmed off the infected material away from the seedling without harming them. Now it's sitting in a small plastic nanny cups. Maybe I'll keep em alive. I migh have to administer first aid to a third tone as well. It is tall enough for me to use something to block off the light as suggested (until I can get something proper I used black duct tape) waiting to see how long it takes to kill the ugly green carpet.

when i used rockwool cubes i never worried about algae

Warezaholic said:

I managed to remove two plugs from the cubes and very few tiny roots were lost. I trimmed off the infected material away from the seedling without harming them. Now it's sitting in a small plastic nanny cups. Maybe I'll keep em alive. I migh have to administer first aid to a third tone as well. It is tall enough for me to use something to block off the light as suggested (until I can get something proper I used black duct tape) waiting to see how long it takes to kill the ugly green carpet.

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That's going to extreme measures. You could probably have left them in the cubes. A little algae is okay as long as you block the light, but if it takes over the medium it will steal nutrients and choke you roots. Even if you kill it, the green usually won't go away. I'd be more concerned with overwatering than the algae.

Duct tape seems like it would work for a temporary fix. I bought a roll of panda film and cut out little squares. Panda film is super useful.

What size cubes are you using?