Page 4 of 5 FirstFirst ... 2345 LastLast
Results 31 to 40 of 47
  1. #31
    Members
    Join Date
    Apr 2011
    Location
    Beryl, Utah
    Posts
    11

    Re: Aquaponics 101 Part Two: System Design

    Hello all

    I realize this may be a little dated in this thread, but as a total newbie, I really appreciate Aquaponics 101. I also understand that one size doesn't fit all and that this thread is not gospel. I understand that what works for me in Utah, probably will not work for someone in Australia and vise versa. Case in Point. Tilapia are considered an invasive species in Utah and therefore cannot be used in my system. Prawn of all types (craws etc) are also considered invasive. So my best option at the moment is goldies. After I figure out what I am doing, then I will have to decide on another type of fish. Probably trout, (slow growing) as well as catfish, koi, bass, etc.

    My system is the barrel system. No innovations applied, and done exactly to specs in Mr. Hughey's manual lol. I figured to go with a tried and true system to learn from before I started making changes. We are in the process of being certified organic so are on first name basis with more than one state official that we can bounce questions off of.

    At the moment my system is running with no fish or plants yet. Nearest goldfish is almost 2 hours away 8(. We are on well water and system built in a green house. There are so many things I don't know, I don't even know what they are. Being able to get ideas and references from here I can check out other options and see if something else would better fit my situation.

    Again, I really appreciate and thank all contributors for this forum and maybe in the future I will be able to post and answer or offer options instead of asking all the questions.

    Cindy

  2. #32
    Moderator urbanfarmer's Avatar
    Join Date
    Sep 2010
    Location
    Zone 9b
    Posts
    2,294

    Re: Aquaponics 101 Part Two: System Design

    Don't hesitate to ask. Feel free to start a new thread, post pictures, etc!

  3. #33
    Members
    Join Date
    Jul 2010
    Location
    Deming, New Mexico
    Posts
    937

    Re: Aquaponics 101 Part Two: System Design

    Welcome utahgal welcome.
    Everything we know is evolving and improving so jump on board!

  4. #34
    Members
    Join Date
    Jul 2011
    Location
    Cumberland Plateau, TN
    Posts
    9

    Re: Aquaponics 101 Part Two: System Design

    Oliver, I'm sorry that some people are giving you such a hard time. It's like the saying goes "you can't please all the people all the time." Yet, I am another person who is truly grateful for your generous sharing of what is working for you... it is giving me a good starting point as I plan my own aquaponics system.

  5. #35
    Members
    Join Date
    Jul 2011
    Posts
    1

    Re: Aquaponics 101 Part Two: System Design

    Quote Originally Posted by Oliver
    Keep in mind that once the grow bed media is in the grow bed, it will displace at least 50% (Hydroton) of the volume of the grow bed (more for gravel) leaving half or less of the original grow bed volume for water. This should be taken into account when sizing your water pump.

    If you are using Hydroton as a grow bed media, a good rule of thumb for the size of grow beds is 3.3 gallons of grow bed (minimum) container size for every pound of fish you plan to have in your system at maximum fish grow-out size. If you plan on a ratio of three gallons of water per pound of fish in the fish tank, then this works out to about one gallon of fish tank capacity to one gallon of grow bed container capacity when using Hydroton as a grow bed media.
    Oliver, I've been searching for the answer to this and have not yet found it related to grow bed volumes.

    Based on the numbers you used above.
    3.3gallons of grow bed
    1 pound fish
    3 gallon fish tank

    Does the grow bed hold 3.3gallons of water with the Hydroton or is this 3.3gal capacity empty?

    I'm planning out my system and want to ensure I have appropriate sized tank. I'm digging for an in ground tank with internal dimensions of 6'x15' at 3' depth. That comes out to 2,000 gallons for the tank which I calculate that I need 267 square feet of garden space at 12" depth and can handle about 660# fish.
    Does that seem right?

    I'm using the formula of 1cu.ft.=7.48gal.

  6. #36
    Aquaponics 101 Oliver's Avatar
    Join Date
    Mar 2009
    Location
    Show Low, AZ USA
    Posts
    251

    Re: Aquaponics 101 Part Two: System Design

    Quote Originally Posted by jlawsonz
    Does the grow bed hold 3.3gallons of water with the Hydroton or is this 3.3gal capacity empty?
    That would be container size (empty).

    Oliver
    To measure is to know

  7. #37
    Members
    Join Date
    Nov 2009
    Location
    Central Florida, USA
    Posts
    68

    Re: Aquaponics 101 Part Two: System Design

    I would personally recommend a lesser fish load when planning a system. Like something closer to twice that amount of gravel bed per pound of fish. Once experienced you may be able to get away with more fish but if you are having to ask how much fish you can stock, you are really not prepared to handle a system stocked that heavily. One fish per cubic foot of gravel (aprox 7.5 gallons of gravel bed) is a very reasonable amount to start with.
    TCLynx

  8. #38
    Members
    Join Date
    Oct 2010
    Location
    Gig Harbor, WA
    Posts
    8

    Re: Aquaponics 101 Part Two: System Design

    Oliver, thanks for the forum. It is very helpfull.

    My question relates to fish tank and growth bed size ratios in terms of fish stress. Im not trying for pin point accuracy in terms of volume just a general understanding.

    If I understand the 1 to 1 ratio as presented, a flood and drain system with 2 growth beds will eventually cycle to a point where both growth beds are filled with water (Just before draining). Taking into account the volume of the media, this would require of the water from the fish tank. Hypothetically speaking a 24 high fish tank would then be temporarily lowered to approximately 12. Assuming this is true;

    1. Would the lowered fish tank level cause any stress to the fish?

    2.Would this argue for a sump tank to keep the fish tank level constant?

    Thanks

  9. #39
    Moderator urbanfarmer's Avatar
    Join Date
    Sep 2010
    Location
    Zone 9b
    Posts
    2,294

    Re: Aquaponics 101 Part Two: System Design

    Quote Originally Posted by Scupper
    Oliver, thanks for the forum. It is very helpfull.

    My question relates to fish tank and growth bed size ratios in terms of fish stress. Im not trying for pin point accuracy in terms of volume just a general understanding.

    If I understand the 1 to 1 ratio as presented, a flood and drain system with 2 growth beds will eventually cycle to a point where both growth beds are filled with water (Just before draining). Taking into account the volume of the media, this would require of the water from the fish tank. Hypothetically speaking a 24 high fish tank would then be temporarily lowered to approximately 12. Assuming this is true;

    1. Would the lowered fish tank level cause any stress to the fish?

    2.Would this argue for a sump tank to keep the fish tank level constant?

    Thanks
    1) Most definitely, no.

    2) That's up to you, but it's unnecessary with gravel grow beds.

  10. #40
    Moderator davidstcldfl's Avatar
    Join Date
    Nov 2009
    Location
    Saint Cloud FL USA
    Posts
    2,029

    Re: Aquaponics 101 Part Two: System Design

    Like UF said...it's up to you.
    I use a sump, which keeps my fish tanks water at a constant height. Which makes the fish happier..they told me so...
    The advantage to a sump is, with the added volume of water, the tempt, DO level, ph, ect remains more stable. The smaller the system, the faster the 'swings'.
    "Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same." - President Ronald Reagan

Similar Threads

  1. Critique My First Aquaponics Design
    By Civilian Patriot in forum The Welcome Lounge
    Replies: 1
    Last Post: 04-16-2013, 08:33 PM
  2. Aquaponics 101 Part Three: System Design, Continue
    By Oliver in forum Part Three: System Design, Continued
    Replies: 43
    Last Post: 01-10-2012, 01:45 PM
  3. New to Aquaponics, first design overview
    By blomadam in forum SUMP
    Replies: 3
    Last Post: 10-07-2011, 05:39 AM
  4. Aquaponics 101 Part Four: System Start Up
    By Oliver in forum Part Four: System Start Up
    Replies: 10
    Last Post: 07-14-2011, 03:25 PM
  5. Aquaponics 101-Part One: The Process
    By Oliver in forum Part One: The Process
    Replies: 54
    Last Post: 07-14-2011, 07:49 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •