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Salad machine

Posts: 20
Location: Germany
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Hey everyone!

This is my first post and I wanted to share my first aquaponics system.

The system:
Tank: 8 l plastic bottle
Type: only two pipes, less than 2 m in total, 18 holes for plants
Medium: expanded clay
Fish: none, only snails
Plants: several different perennial leafy greens
Pump: Airlift, moves about 50 ml per minute
Light: natural light from the window
Price: less than 15 euros (not including plants and pump)

The pipes are filled with the extended clay, there are no pots, just 18 holes in the pipes. I don't plan to put fish in there, but snails. Maybe I should call it Snailoponics I prefer snails because of the low volume and the fact that snails need less care and I can feed them with kitchen waste. The system has perennial leafy greens only. It's purpose is to experiment with various kinds of plants and see which one serves best to produce salad greens in the long run.
Right now I have the following plants in there:
Murdannia loriformis (Beijing Grass)
Callisia fragrans (Basket Plant)
Gynura procumbens (Longevity Spinach)
Gynura vitelina (Embirbiri)
Gynura crepidioides (Okinawa Spinach)
Anredera cordifolia (Madeira Vine)
Nasturtium officinale (Watercress)
Centella asiatica (Gotu Kola)
Bacopa monnieri (Brahmi)
Ipomoea aquatica (Water Spinach)
Persicaria odorata (Vietnamese Cilantro)
Marsilea minuta (Sushni)
Eclipta alba (False Daisy)
Alternanthera sissoo (Brazilian Spinach)
Peperomia pellucida (Shiny bush)
Ocimum species 'Mammut' (Giant Basil)

Right now, I am still in the process of rooting some cuttings. The system is about 3 weeks old, the snails will arrive in the next days. As you can see I have still space for two more plants, I was thinking about Sauropus androgynus (Katuk) and Hibiscus acetosella (Cranberry Hibiscus), but I'm not sure if I can keep them to about 30 cm in height without stunting their growth. Any opinions on that or other plant suggestions are very welcomed!

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Posts: 4665
Location: Zones 2-4 Wyoming and 4-5 Colorado
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Howdy John, welcome to permies !

I always love seeing another aquaponics system ! Looks like fun.
Posts: 129
Location: Elgin, IL
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Lookin' good!
Posts: 19
Location: South Florida
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I notice that you're growing Callisia fragrans, a plant I have all over my garden. I just read about it and found out it's a medicinal, but I'm not finding anything about its being edible. Did you try eating it?
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