nooooo MOLD? Fresh babies in rockwool!! Please help :( :(

[LivetoGrow]

Hey guys! I just updated my grow journal (in signature) and I have some sad news. 2 of the 12 rockwool cubes have some white stuff on it. I'm going to go see if its chalky, dry, wet, etc shortly.

Anyone know what this is?

Mildew? Mold? Algae? Deposits from the water? (Watering with thrive-alive green b1)

The rockwool has been moist and under light for 6 days total, I'm thinking this is the culprit.

PLEASE, this is my 1st grow, let me know what you guys think. Much love!

 

[ronvmpc]

Put panda film over those cubes.

 

[Seamaiden]

I think it looks like fungal mycelium. Have you used any product that claims to have beneficial microbes? If so, that would be a likely culprit. Definitely not algae.