In addition to my AeroGardens, I've recently acquired a Gardyn. I have been hugely impressed with their customer service, and the design of the Gardyn itself, but the system still has a few minor wrinkles to work out for maximum efficiency and ease of use, in my opinion. This is not really a complaint, simply a fact of life for a relatively new product. But, that is for another post!
This post regards one of those small ease of life quirks. In the Gardyn system, currently, the growth medium is
1.5 inch rockwool cubes, in a custom compostable "plastic" cage. However, the surface of the cubes is fully exposed.
As anyone familiar with hydroponics can tell you, water+nutrients+light is an equation that inevitably equals algae.
Although algae is almost inevitable, and not in itself a horrible thing, a thorough cleaning of the Gardyn system is quite an undertaking, and being myself heavily disabled, I am trying everything I can to prolong the time between cleans. One way I want to do that is to cover the rockwool and prevent algae growth there. While algae on top of the pods isn't any particular problem, I figure the less algae there is, the less that will breed inside the system. Since neither water or food can be removed from the equation, that leaves light. All this needs, of course, is a relatively simple cover. Although the folks at Gardyn recommend just using tinfoil, I wanted something a bit better looking. It's a simple enough design, and would work on most any growing system.