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Under $70: Self-Sustaining fish tank that grows microgreens for you!
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items If you’re trying to cut grocery bills and minimize maintenance, this setup does both. I built a fully self-sustaining aquaponics system for under $70 — a Betta fish tank that grows microgreens using the fish waste as fertilizer. Zero complicated plum...
Sections
3
The Tank:
The fish
The microgreens!
The Tank:
This is the foundation of the whole build. The kit is designed specifically for aquaponics — the grow bed sits on top of the tank and the water cycles naturally between the fish and your plants. It’s genuinely beginner-friendly, looks clean, and at 3...
Back to the Roots Indoor Aquaponic Garden 3 Gal
The app control on this one is a game changer — you can set timers and adjust brightness without touching the tank, literally just use the app. Full spectrum means your microgreens actually get what they need to grow, not just decorative light. Works...
Pawfly 5W Bluetooth Aquarium Light 8 inch
Bettas need warm water — don’t skip the heater. This one has a digital display so you can actually see and dial in the exact temperature. Compact enough it doesn’t clutter a small tank and reliable enough you’re not babysitting it constantly.
hygger 20W Mini Fish Tank Heater w/ Display
The black substrate makes the Betta’s colors pop and gives the tank a clean, modern look. Fine 1-2mm grain size so it’s safe for a Betta and easy to maintain. Small aesthetic detail that makes a big difference.
Aqua Natural Diamond Black 10lb Gravel
The fish
Bettas are the perfect fish for this setup — hardy, low maintenance, and their waste is exactly what the plants need to thrive. One fish is all you need. Grab yours from your local Petco or pet store and look for a healthy, active one with vibrant co...
Betta Fish!!!
The microgreens!
10 varieties in one pack means you can experiment and figure out what grows best in your setup. Microgreens grow fast, they’re nutrient dense, and they’re genuinely one of the easiest things to grow hydroponically. This is where the “growing your own...
Microgreen Seeds Variety Pack – 10 Heirloom Types