Joan's aquaponic setup

33 golden tilapia, 12 cayenne peppers, 11 kinds of veggies, 5 colorful koi, 4 grow beds, 3 collard seedlings, 2 electric pumps, 1 timer, and a flower in my eggplant treeeeee! Happy holidays everyone!

More requested info: pump in 100-gal tank runs @ 500 g/hr (runs intermittently, every 2 hrs for 30 min but only twice after sunset for 5 min), pump in 40-gal sump runs @ 250 g/hr runs continuously. Since I live in Hawaii, the system runs year round. Cost of system (plus fish and plants) is in the $1000 range. I'll post more accurate totals once I figure it out. (Updated, 8/18/11)

Aquaponics fish tank - golden tilapia

Dinner, Lunch, and Jack (the one-eyed tilapia) are doing well amongst the minion. I'm sure they get the best morsels too.

If you're an aquaponics nerd, you might find this info interesting ... pH is 6.8, ammonia is negligible, nitrites 0.25 mg/L, and nitrates 15 mg/L. I dunno the dissolved oxygen but I use an airpump and airstone. Oh, and the PVC pipe with holes that is running along the bottom of the tank is part of the pump, drawing off fish solids (i.e., poop). It's been really effective so far!

My fish tank is 100 gallons and receives the overflow from the sump. The pipe to the left is the overflow drain so I don't flood my downstairs when it rains hard.

Aquaponics update - 12/11/10

The aquaponics system is finally equalizing and the little buggers have the nitrates and other nutrients they need. The veggies are doing well and the little sprouts are about as big as the ones I started separately and transplanted 2 weeks before! Seeding the beds directly saved me tons of time and the seeds seem to have set at the right depth, which means the mizuna and collards won't fall over like the others! Check here to see the beds two weeks ago.Whoa, is there enough space to fit everything? Prolly not but I'l cull as we go. However, I think the system should be able to handle the close proximity. With the roots bathing in nutrients, there would be less competition, right? It's all theoretical now so I'll be interested to see how things go. I'm so stoked about the mizuna. Just the idea of having it available year-round is worth the effort of putting together this system!
The deep water culture beds are doing well too! The watercress is finally picking up speed and so are the ong choi and mint. Click here to see the beds two weeks ago.

I'm so glad that my lettuce are doing what lettuce is supposed to do!

Golden tilapia

I just added 16 more fingerlings to the mix. 34 in all. The 2 largest ones are Lunch and Dinner (sick, I know) and one without an eye is Jack, the one-eyed tilapia. And I put 5 pretty koi in the sump. They all seem to like their new digs.

Oh my ... folks, please remind me to stop naming animals I will be eating!