Aquaponics progress

The new system is nearly entirely built. I have learned a lot of lessons, on how to build and plumb more efficiently (for way less money!) for next time around. So many parts that I imagined would be easy to find were not, and some didn't even exist. I've kept all my receipts and will update with the way-over-budget total when I'm done and have returned all of the incorrect parts that I bought. :) I will also add a more reasonable hindsight budget for next time!

The system is a roughly 100 gallon grow bed and roughly 100 gallon fish tank. Both are built with 3/4" plywood and reinforced in the corners (top and bottom) and lined with EPDM pond liner. I will probably also add some reinforcement going over the top of the grow bed to keep it from bowing over time. It's all on an old shelving unit my carpenter neighbor built and gave to me when he moved. Very sturdy but added more casters in the middle (you can't see them in this picture) and some extra 2 by 4 bracing just to be extra sure. The system can obviously not be moved around when full, but the idea is to empty the tank (even temporarily) between seasons so it can be in afternoon shade in summer and full sun in winter. When it's in place I have cinder blocks underneath it for extra insurance.



The most simple explanation is that a pump pumps about 40% of the water out of the fish tank to fill the grow bed, when the water reaches a certain level a siphon kicks in and floods the water back into the fish tank. I went with an Affnan siphon for those of you that are interested in those sorts of details. I'll do a more complete post about siphoning in the future.

Looking down into the growbed-- need a little more substrate to fill it up.

The rocks on a plate are a temporary weight to hold down that pipe. The pipe has lots of holes drilled in it to act as a strainer to keep the rocks from entering the siphon, which is inside that pipe. The pipe to the left of that is an overflow pipe (I need to make it shorter). It's simply a back-up in case the siphon ever fails, it will keep the grow bed from overflowing. The other pipe is hooked up to a 35 watt(!) Laguna Max Flo 600gph pump, and carries the water from the tank to the grow bed. I will put some aquarium filter underneath where it comes out to keep too many solids from entering the grow bed. It might be hard to see but the water pipe is zip tied in place in three different spots to be sure it stays in place.

Still a little more fine tuning, but as it is now, everything works how it should. I plan on beginning to cycle the tank tomorrow, it should be ready for the tilapia in about 3 weeks.

Aquaponics beginning

After a year or so of wanting to do aquaponics, I've finally begun. For those of you that don't know about it, aquaponics is similar to hydroponics only instead of adding chemicals, you use a fish tank and the fish provide the plant nutrients and the grow beds provide the filtration for the fish.

I had some plans to build a 1000 gallon fish tank filled with tilapia and stick some growbeds on it and call it a day. It turns out, after some research, that there's recommended ratios and a few other things that just made it more complex than I was expecting. Not the least of which is our climate. For at least a month we have highs around 115 and lows around 90... and humidity. It's also quite expensive to do something that large, not prohibitively expensive, but enough so that I don't want to mess up. So for now I'm building a 100 gallon fish tank which will pump up about 50 gallons twice an hour to a 100 gallon grow bed filled with rocks which will siphon back down into the fish tank.

Building the outer frames for the fish tank and grow bed

I was lucky enough to get some tilapia fry (babies) off of craig's list, as it's expensive to overnight big bags of water from the hatcheries, and I only needed about 15 fish, which is well below any minimum order sizes. We did a trade for them too, which was an even bigger bonus. I gave her seed packs and quail eggs.

Those gray smudges are 1/2" long tilapia

I have a pond pump, and pond liner on the way. Both the fish tank and grow beds will be lined with pond safe EPDM. Until then....

Not so flattering pic... it 100 degrees in there

Happy solstice, the mead is done!

First off a happy summer solstice to all of you. As always, it feels like we're at least a month into summer here by the time the solstice rolls around. I've instituted a new family tradition that we'll celebrate the solstices (and maybe the equinoxes too) with some homemade hooch. Today I think it will be more of our hefeweizen as it's already at its peak and delicious. The hefeweizen was actually our second attempt at liquor making, the first one was the honey mead we started several months ago but just bottled this weekend. The mead was a bit of a learning curve for us as we learned some important lessons in sanitation, and how as it turns out, you should check all of your seals BEFORE you put the mead in the primary fermenter, otherwise you may have to put your hand in the brew to tighten things up. Despite the odds the mead turned out drinkable and not poisonous. We opted for a dry mead rather than a sweet one and this one is definitely dry. I think we left it in the fermenter a little long as it tastes more like a chardonnay that was left on the counter overnight... a hint of vinegar. Hey, I said it was drinkable, not wonderful. We're hoping that some aging will help it get a little better.
22 bottles of La Mano Venenosa Mead

The rest of the tiny farm is being productive as well. The 11 chickens are pitching in laying plenty of eggs in the 105 degree heat. Here's a week's worth:

Not bad considering that a few of these birds are pushing four years old and I'm still getting about 9 eggs a day!

The first blackberry!

This morning I got to pick the first blackberry I had ever grown. I didn't even know you could grow blackberries in Phoenix until I was about 20. Ever since then I had wanted to and when I bought my house I tried (and killed) several blackberry plants and pretty much gave up on it.



Fast forward to about a year ago. My husband and I were riding bikes around the neighborhood on our way to visit the house that had heritage breed turkeys for awhile. No, not legally, but no one complained. You could see the pen from the street and I think a lot of people like made a point to go by that house just to watch the turkeys. Anyway, we stopped at a yard sale a couple doors down. I bought a little birdcage to use as a hospital cage for small birds for $5 and I noticed he had a huge hedge of blackberries. Long story short: we rode our bikes home with a birdcage and a gallon bag of blackberries. He invited us to come back later with a shovel and dig up a few. We did. I planted them. Two out of five survived and I now have blackberries. I recently found out that they grow 'wild' in the irrigation ditch a street over and an awesome neighbor whom I've recently befriended happens to live next to that ditch and brought us 8 or 9 plants of which a few are starting to leaf out. These are not the thornless 25 gallons of berries per plant you see advertised in the catalogs and magazines, they are good old-fashioned very thorny blackberries. It makes them a little rough on the hands, but it also means they're a little rough on predators. I've planted them against the fence to the chicken pen and against where I plan to build a big quail aviary in the fall, so now they can serve two purposes.

A big day indeed.

Solar update, more baby quail, PICS

For those of you that are curious, the electric bill last month was $9.47. Way to go, solar! About $8 of that is administrative fees and taxes, the remainder is from the couple of days before they installed the new meter that credits us with surplus power. After all the math, it seems like it will pay for itself in about 5 years. However my husband and myself are both essentially freelance so the investment in the piece of mind that we have (basically) one less bill to pay every month is worth even more to us.

We had an 80% hatch rate for this last batch of quail. This seems a little low for eggs that didn't have to travel but still very much acceptable. There comes a hard time in nearly every hatch when a quail or two has started pipping out of the shell and for whatever reason gets stuck and doesn't progress. The general rule is to not help the quail, that hatching is a test of fitness and for the sake of future generations you only want to breed the best and healthiest birds. Often birds you help out will be weak or have other problems and die anyway. Every once in awhile though you get a bird that is so close, really seems determined and peeps away at you from half inside the shell as if to beg you for just a tiny bit of help. Honestly from time to time I help one of these birds, I tell myself I really shouldn't, but I can't just let it suffer. An important part of responsible animal husbandry is to not be such a softy, that you really aren't doing the breed as a whole any favors by helping out individuals in this situation. My solution for this is that if there is one that I've helped, to band it and make sure it doesn't get used for breeding.


It takes about 4 to weigh as much as a cherry tomato. :) On to the pics!






Breed responsibly!

Solar is finally completed!

As the title states, after a long wait, lots of red tape and a few dollars, the solar panels are finally hooked up and running. All 5.04 Kw. We had a great time watching the meter run backwards the first couple of days, but then the utility came and replaced it with a digital meter. Like digital slot machines this took away some of the fun and excitement, but the end result is still the same. It's been up and running for about 12 days and here are the statistics courtesy of the inverter box:
30 Kwh of electricity produced today
398 Kwh produced so far
676 lbs of CO2 saved

What would you do to celebrate? We brewed our first beer. With some help from my friend Chloe who is an experienced brewer and a fantastic local brew store (Brewer's Connection in Tempe) we now have 5 gallons of hefeweizen in the primary fermenter. Between that and the 5 gallons of honey mead bubbling in the closet, we should be in good spirits for awhile. :)

The ever-popular banana ice cream

I feel I should repost the banana "Ice cream" recipe for those of you that have either not seen it or for some reason have not gotten around to trying it because maybe you're skeptical that a one-ingredient recipe could be so awesome. Let me assuage your anxiety. It is that awesome. It's vegan to boot so you can serve it to your friends that are always insisting that tofu-based pies are as good as the real thing.

Directions:
Freeze some bananas. If you froze them in the peels let them thaw out just enough that you can easily slice the peels off. (15-20 minutes) Cut into slices. Put in the food processor until it gets to be the consistency of fancy ice-cream. Eat.
For a way more complex version: add a teaspoon of peanut butter in the food processor with the banana slices and then when it's done add chocolate sauce. As my new favorite feedback booth guy at the end of a recent Antiques Roadshow says.... "Champion!"

I realize a picture should be here, but I ate it before I thought to take a picture. Besides, you all know what ice-cream looks like.