And that's all there is gong to be until tomorrow at least.
The grow media this time is a product from Germany called Hydroton. It's clay balls that are puffed up like popcorn and are really nice to work with.
They are very clean, so all they needed was a quick rinse rather than the hard work that washing scoria was all about.
They are also great to work with.
Scoria was very sharp, and hard on the hands, but this stuff is a very different story. You can push you hand right to the bottom of the grow bed. I'm surprised it's stable enough for tall plants, but it doesn't seem to pose any problems.
I've read that it can float for a while, and mine is sitting in a half full tub, so perhaps it will settle a bit in time.
Because I've been feeding close to the maximum my system would allow, I should be able to compare scoria to Hydroton from the point of view of the bacteria colony. If I cant double the feed within a few months, it means the scoria is better, it will be interesting to see.
120 Things in 20 years, where sometimes, eventually, stuff like an aquaponics, absurdly low energy system test can start to take shape.
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