I'm using Rapid Rooters for the first time (I like them so far).
I have however come across a weird 'growth' at the base of the seedlings. I quoted growth, 'cause I can't tell if it's biological or mineral.
They are little green spots that seemingly grow out from the rapid rooter.
My guess is that they are salts from the nutirents that are collecting like stalagmites at the point of evaporation. The seedling has shown no signs of stress and appears to be healthy.
Have you guys seen anything like this? sorry the picture sux but they are pretty small.
There have been a few that I've pinched away from the rapid rooter but they have come back.
Thanks