Aquaponics! - Merit Educational Consultants

Aquaponics!

Imagine a fish tank filled with fish and media beds filled with garden veggies connected together in a full-cycle system. This is called AQUAPONICS. The fish produce waste and microbes and worms convert the waste (ammonia) to fertilizer (nitrites to nitrates) for the plants. Then, the plants filter the water (cleaning it) that is returned to the fish tank. It’s a closed-loop system that uses no chemicals. What a concept! This takes “natural” and “organics” to a new level! There are absolutely NO CHEMICALS used. No pesticides. No antibiotics.  No soil; just rocks. Besides, chemicals and artificial additives would kill the fish and the plants!

I saw my first aquaponics system while I was on vacation in Disneyworld. They had a giant tanks filled with tilapia and TOMATO TREES! Yes, tomato trees that grow year round. I was especially intrigued by the prospect of raising fish because I had been reading about how farm-raised fish live in filthy, unhealthy conditions and what consuming THEIR unhealthy bodies does to our bodies. I have always been a big fan of eating organic, non-GMO veggies. Putting these two systems together just made perfect sense to me.

I took an aquaponics class and learned how to build the system.  Then I hired an aquaponics teacher to build the tanks for me. We got 5 food-grade 55-gallon plastic containers: Two for the fish, one for the filter system, and two (that we cut lengthwise) to create 4 half media beds for the plants. We connected each tank with one-inch PVC pipes and added a water filter and pump. We tested the system for about 2 months until we got the alkalinity balanced. Then we introduced feeder fish to get the poop water started.

Each month, we added more fish to increase the fish waste produced. Finally, about 5 months later, we bought catfish and Blue Gill to raise. We had several mishaps with fish getting sucked into the filter system – ProTip: install a screen to prevent the fish from flowing from tank to tank!  We planted cucumbers, kale, beets, celery, basil, onions, and broccoli. Although it took several months for the plants to get acclimated in a hydroponic system (no soil), all of our plants are thriving now.  Creating this mini eco system has been quite an adventure. Watch out for celery; the celery root system grows so fast that they can clog up your tanks!

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