Question about algae, smell, hydro transplant...

Hello grow community!

I have some question to you whose more experienced than me.

I’ve been growing seedlings in jiffy and then planted ’em to rockwool cubes. Soon as I planted them the algae started to grow on ’em and now the cubes smell kinda moldy…

The question is that is it safe to put those to NFT setup or do I have to plant them in the soil?

The smell reminds me of bacteria or fungi and I consider that are those bacterias and fungis welcome to NFT/hydroponics setup?

What should I do? Can you help me out and help me to solve this dilemma..?

If ima go and try to solve the problem with hydrogen peroxide? Do I have to wait till the bacteria or fungi is defeated and then transplant em to NFT or can I transplant em and then fight the bacteria/fungi?

I consider the planting to soil because soil has all kinds of microorgans and I thought it wouldn’t matter in soil am I wrong?

TLDR: Transplanted Jiffys to rockwool amd they started to grow algae… So can I transplant ’em moldy smelling things to NFT or do I need to fight the problem and then transplant ’em? Or maybe better solution is to transplant ’em to soil?

Please grow bros solve this for me and help me out!!??

Thank you for the answers and giving time and solution to my problem…

I've not used rockwool, but I'd probably top feed the blocks with your usual feed dosed up with the right amount of peroxide (im presuming your doing a 'sterile' grow rather than using organic feed, beneficial bacteria etc?

Do you top feed anyway with NFT until the roots are big enough? I dunno as I do DWC.

In future I would just plant the jiffy plugs straight into your clay balls and skip the intermediate rockwool stage...