Hey everyone, just to clarify things a bit, I used the nutrient yeast which is dead. You can purchase these nutritional yeast supplements online or at health food stores but I wouldn’t buy the expensive stuff. Basically it’s just dead yeast which has lots of different B vitamins along with Sulfur, Magnesium, Zinc, Iron and other minerals.
If you cant find it, you can just take bakers yeast and cook it.
Here’s a link to a random yeast supplement I found online but it gives you an idea of what’s found in the yeast that may have plant growth promoting properties.
I have not tried using live/activated bakers yeast but it may work.
Simon