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...

I didn't mention that I've grown some edible shmoors and got hit by trichoderma harzianum. So if its mold it's then trichoderma and its beneficial both in hydro and in soil. It even kills the root rot if that occurs in system

**Increase Yields and Plant Health.** In addition to helping your plants keep themselves healthy and fight off diseases, Trichoderma also helps increase nutrient uptake, increase growth, increase yield and increase the number of seeds they can germinate.13.9.2019

Despite the facts about trich and its benefits I still wonder if those are safe to go for hydro. And my question was that. I just failed to mention about the trichoderma infection.

Plants that are non-Jiffys (so they're rock wool on rock wool not Jiffy on rock wool...) are not growing algae so I think the situation is because of Jiffys or it has something to do with Jiffys... Its strange that non-Jiffy seedlings doesn't give a fuck and Jiffys just give...

Maybe I'll put 'em into the soil and spend my days without a stress about it? How's that sounding?

futurebanjo said:

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...

Click to expand...

Roots are now developed and its time to put'em to NFT. I just dont know if its safe or not but if they have thrichoderma infection,I think its beneficial (see my latest post at this thread) Even tho the facts about the thrich, I don't know that am I planting babies to NFT... That was my question.

EVERYONE: IS IT SAFE TO PLANT BABIES TO NFT IF THEY HAVE THRICHODERMA ON 'EM??

I think its safe but still want to be sure about it...

Trichoderma infection? Most Trichoderma strains are beneficial but have very little action in a hydroponic setting.

There's way more effective and safer fungicide bacteria called bacillus amyloliquefaciens that people use successfully in hydro and water cultures.

Trichoderma is more intended for trees and soil grows outside and may do more harm than good being added to the reservoir.

How on earth do you know the plants been inoculated with Trichoderma and what strain of it?

Roll a Doobie and relax! If you're planning on growing in hydro i recommend to go the sterile route starting out with an oxidizer added to the reservoir. I've used regular unscented bleach forever and you find the dilution calculator with recommendations in my signature.

Cheers!