Aquaponic Gardening

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55 gallon garage aquaponic system is now cycling water. 600W bulb on 4 ft sq of future tomato paradise. Still a few weeks from stocking, but the heavy lifting is finished. I'm using a flood and drain running off a powerhead feeding from the undergravel filter in the tank. Tank is lengthwise on glass bricks on concrete in a narrow closet (39") on the back of my garage. I recycled a shelf to accommodate the grow bed, and placed it about 8" above the top of the tank (It's just particle board on rails so I can pull it out when I need to get in there). I'm concerned about how much heat that HPS is going to create in the enclosed space (no fans attached to it yet). The closet is uninsulated and it's about 22-25 sq ft, with a 9' roof (towards the door, it's the high side of the structure). There's a doggy door I can use as an intake (the dog has never once been coaxed through it), but I'll probably need to put in an exhaust fan before I start running the light. I'm pleased it's finally up.

Craigslist can occasionally play out well (tank - free, light - cheap).

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Comment by Dan Brown on October 14, 2010 at 4:52pm
This system couldn't take the heat without me creating more vents in the garage, which I'm recalcitrant to do. I brought the system inside, and have written a detailed analysis of the new set-up. I'll be posting a link to it on Associated Content once it's accepted for publication. Here's the key points, I'm running the same electrical components and tank, and I'm estimating a cost of about $22/month (using high summer electrical prices), and the whole set-up cost about $750.
Comment by Harold Sukhbir on September 9, 2010 at 9:40am
Good luck Daniel, and hope to see some pics of your system.

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