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Comment by Orion Dillon on July 12, 2012 at 10:03am

I know most aquaponicers like to make their own systems. As it turns out I am going to sell mine. I need people who would like fish first off. This would be donation based.

I have gold fish 100-150 2''-6'' long (and 2 catfish.)

3000 liters of hydroton worth about $1500. I would sell that for $900 (less than $15 a bag

If you take it all with the beds I would throw in the main pump and the bamboo for aesthetics.  for $1100. I will take a trade on a computer if you have one. 

There are 3 4x8 grow beds. This does not compensate me for my time. I am moving and just need the money.

Comment by Allan K. on July 11, 2012 at 3:59pm

Hi, Iam new to this group and to aquaponics. I've been inspired by YouTube videos of growing power and the concept of spin farming. I think there is a need for affordable food not only here in Sac. But nationwide. I see so many vacant lots that could be utilized. I think a profitable business could be set up on those lots. Affordable organic food on every corner.sounds good to me. If anyone is interested and knows the first steps lets talk.

Comment by Bob Campbell on July 9, 2012 at 1:04am

Greenfire in Chico has Hydroton at 1/2 price.  I think it was $14.00 per 50 liters.

Retail & Phone/Mail Orders      
Chico, California 
2725A Hwy 32 West 
Chico CA 95973 
Tel (530) 895-8301 
Fax (530) 895-8317

Hours:
M-F 9 am - 5:30 pm 
Sat 10 am - 4:30 pm

Retail Store 
Sacramento, California 
3230 Auburn Blvd. 
Sacramento CA 95821 
Tel (916) 485-8023

Hours:
M-F 10 am - 6 pm 
Sat 10 am - 4:30pm
 

Comment by Fishy McFisherson on July 9, 2012 at 12:59am

@ Orion, just sent you a text. I will follow up with a phone call tomorrow. I'm interested in purchasing whatever you have available.

Comment by Orion Dillon on July 9, 2012 at 12:39am

I have some extra hydroton for that I have used for aquaponics. If anyone would like to purchase this off me I will give them a deal. I have enough for about 4x8 bed by 1 foot deep. call me 916 502 3313

Comment by Justin on July 7, 2012 at 10:14am

625 gal poly stock tank by Behlen - Price: $150

http://www.classifiedads.com/farm_ranch-ad15975835.htm

Comment by Bob Campbell on July 4, 2012 at 4:46pm

Thanks again Vlad.  I realized after posting my message that I meant Oxidation not REDOX, but figured that I had had not been very specific about the direction of the transformation and decided to just let it go

I've read over some of the stuff I wrote before, and now I see why you kept pinging away at me.  I am happy that my plants have recovered, but the reason I'm playing around with those plants is to become educated, and so I REALLY appreciate that you have not let me slide by with inaccurate descriptions.

I never thought chemistry could be so interesting!

Comment by Jon Parr on July 4, 2012 at 4:41pm

Yeah Vlad. I hate to admit my procrastination with the RSG filter. And I feel your pain with the lack of job and commercial option. I'm in the same boat. I haven't lost my job, but may as well have for the lack of profit in my trade for the last couple years. Besides, I'm self-employed, and my boss is an asshole :)

I'm still moving forward with commercial plans myself, though lack of funds keep pushing me into working more, which robs my time for building my raft beds. I have all my lumber, half of my liner, and rafts will be here the 13th. I'm planting 800 holes per day, can't wait to harvest, and I haven't even built one trough. Talk about the cart before the horse!

Bob, that's crazy to hear pumice lowered your pH. I thought pumice would be inert. Keep us posted on that. Very cool.

Comment by Vlad Jovanovic on July 4, 2012 at 3:47pm

Jon nailed it as too why iron def's are pretty rare in soil/nature (iron being the 4th most prevalent element in there and all)...

Jon...Nope, other than some piddly scale experiment models. As it stands, because they closed the US Steel plant that I worked at, some plans have changed, and a lot of 'experimental' aspects of the AP greenhouse have taken a back seat, to more 'commercial' realities...basically I'm now strapped or cash and can't afford to fuck around too much. Because of the brilliant political/economic situation here, I've turned down a couple offers to work for a whopping $300 USD a month, and have turned my energies towards farming...maybe I'll build it one day, but for now it's 6%Fe-EDDHA...

Man, I'm sorry to hear that your incarnation of the RSG filter isn't on-line either. I was real interested to see how that worked out since you use all those tannins for pH...I think they (along with some of the other organic matter) could/would have gone a long way in keeping the Fe bio-available...

Many aquariums use just that type of set up you described...you can sorta-kinda see the reactions taking place (by the colors) in the anoxic borderlands beneath the gravel and sand...

I agree, Bob appears to have had some Mg issues as well...at any rate it is good to hear that everything has perked up after the additions...

If I've forgotten anything...well just ask/remind me...Well Buckminster Fuller calls and in 4.5 hours it's back to farming

...stupid ning only lets you post 4000 characters at a time...

Comment by Vlad Jovanovic on July 4, 2012 at 3:46pm

Hi Guys, I have to start with the disclaimer that Wed. night is the night I barbecue with my dog (and whatever buddy(s) happen to drop by). I do this cuz Thursdays I play out with my band and feel bad about leaving him all alone...at any rate this usually includes a number of beers. Although this doesn't turn me into a complete idiot, I might say stuff in funky ways...

Bob, first off I apologize for the funky acronyms (RSG) I think a while back I offered a list of threads where some of this stuff has been touched upon...I plumb forgot to give you that list...you can type "iron" in the search field and some stuff should come up...Jon's name and my name may come up in the "posted by section"...

And you're not driving me crazy...that's reserved for the Mrs. and politics...

As usual you're basic conclusions are correct in practical terms, just some of the details might not be (and the devil is in the details)...

Most all essential elements are more easilly taken up by plants in their mono-valent form...probably due to the physical size of the molecule...in the case of certain metals that 'only' posses a di-valent or tri-valent form (like (Fe2+ or Fe3+) it seems almost (if not entirely) exclusively that plant bio-availability will be in the 'smaller' di-valent ion...Rupert or Nate someone can correct me, or point out the exception if such an exception exists. Far as I can tell, it doesn't...But, yes a lower pH is better for uptake of most secondary or trace elements...but I believe it's the size in large part that makes Fe2+ bio-available, but yes the lower pH and organic acids will help keep it in ferrous form so your plants can utilize it...

If I understood what you wrote correctly...you (in your head) just need to reverse 180, oxidation and reduction...an oxidation reaction usually (always) involves the losing of electron(s)...you can look at this as something becoming less negative, or more positive...

A reduction reaction is where that ion gains electrons...and so becomes more negative, or less positive.

The reason they're called 'redox' (reduction-oxidation) reactions is because in reality they are only 'half-reactions' and one half doesn't occur in a vacuum by itself...always together...Protons, like electrons, in acid base reactions in solution are not ever found floating around or anything like that, because they immediately get taken up by some other molecule...these reactions always occur together...

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