Although I'm not a beer drinker, I can always find something interesting to read over on a blog written by one of my readers, Red Icculus:
Red left a comment on my last post with a question that I'll answer here in case others wondered the same thing.
I had mentioned using a "weak solution" of the GH Flora Series nutrients to get my scallion experiment started and Red asked for clarification as to what I meant by "weak."
Here is my response:
Since this is my first experiment with the scallions it is still unclear exactly what concentration of nutrients should be used, but my general rule is to start all new plants (when they are still forming roots) with 1/4 strength nutrients. So in this case where I premixed one liter of water with 3 ml "gro" and 2 ml "micro" and 1 ml "bloom" (3:2:1) then when starting out I poured the nutrient solution 1/4 way to my drain line and topped it off with filtered water. That is my "weak solution." When new leaves start forming, then I will move up to medium strength, which is diluted 1/2.
Once the plants are well-established, I will go to full strength. However, some of the water will evaporate out, leaving a higher concentration, so from that point on, I will top off by alternating between plain water and nutrients. I will also be taking the containers to the sink periodically to give the roots and rocks a good rinse and change the solution as warranted.
Now I am going back over to Red-Icculus.com to ask Red where to get some of that Panda film shown in the post about growing things in the AeroGarden without seed kits. White on top and dark underneath, that looks like the perfect material for fabricating replacement labels!
UPDATE on the Panda film: An eBay seller indicates that the 3 mil panda film (mylar) will not prevent light from passing through, but that the 6 mil will. More on this in Red's comment below, but in short, I had not heard of the Rockwool Block Covers before, and they are perfect as they will be easier to cut into circles as they already have the center hole punched out...and they are affordable and available in small quantities.