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    Mini Fridge + Dosing Pump = Azoox Continuous Feeder

    As Azooxanthellate (“Azoox”) corals become more and more popular, so will automated feeding systems such as this. This regrigerated dosing set up was put together by Michael Lucazyn for his stunning Non-Photosynthetic Reef. Mike’s continuious feeder was inspired by Steve Weast’s set up, with a bit of insight from Matt Wandell on the venturi. In […]

    nps continuous feed dosing pump

    As Azooxanthellate (“Azoox”) corals become more and more popular, so will automated feeding systems such as this. This regrigerated dosing set up was put together by Michael Lucazyn for his stunning Non-Photosynthetic Reef. Mike’s continuious feeder was inspired by Steve Weast’s set up, with a bit of insight from Matt Wandell on the venturi.

    In this set up, a programable dosing pump adds specified quantities of perishable reef foods within a small refrigerator. They are then dosed and simultaneously sucked into the flow via the venturi injector. As water flows through the fridge (and the venturi injector), the food is added directly to the aquarium. Simple, effective, and much appreciated by filter feeding animals.

    The biggest downside of this type of set up is cost and space. If you don’t like the idea of a mini fridge next to your tank, there is also the equally expensive GroTech Phyto Reactor–which with some creativity could by DIY’d.

    azoox continuous feeding

    Mike recently switched to this venturi design, from a previous straight through design shown above. You can also catch a glimpse of Mike’s feeding regimen which includes: Oyster Feast, Roti Feast and Shellfish Diet. Captive Dendeonepthyas around the world just perked up at the mention of that triumverate.

    11 Comments

    1. Mwandell
      August 30, 2010 at 9:48 PM | Permalink

      Looks great Mike!

    2. August 30, 2010 at 11:40 PM | Permalink

      Thanks Matt!

    3. August 31, 2010 at 8:19 AM | Permalink

      Looks fantastic really like the idea.

    4. August 31, 2010 at 8:19 AM | Permalink

      Looks fantastic really like the idea.

    5. August 31, 2010 at 6:24 PM | Permalink

      Why the venturi instead of piping straight in?

    6. AdamMullins
      August 31, 2010 at 7:44 PM | Permalink

      Nicely executed. Id guess the venturi would be more conducive to sucking the phyto down, where piping straight in would place extra backpressure on the dosing pump.
      What are the dosing rates? and are each in equal ratios?

    7. August 31, 2010 at 9:37 PM | Permalink

      The dosing rates are:

      6 ml daily of Shellfish Diet (1ml every 4 hrs)
      12 ml daily of OysterFeast (1ml every 2 hrs)
      20 ml daily of Rotifeast (.83ml every hour)

      With the old set up with the Tee’s; if you remove one of the lines, water would spray out like a fountain from them. By putting the venturi inline, it will only suck air in and no water comes out. This is the fail safe if the line coming out of the doser would break or come undone my tank would not drain out onto the floor.

    8. joost
      September 5, 2010 at 4:54 AM | Permalink

      Looks nice mike

      “there is also the equally expensive GroTech Phyto Reactor”
      ???
      The phyto reactor will cost 1400+, the fridge will be 60+ 300 for dosing pump + lets say 40 for plumbing for a total of around 400, a lot less than the 1400.

    9. September 6, 2010 at 3:05 AM | Permalink

      Joost, this statement was for comparison purposes. DIY to off the shelf is never an even comparison.

      That said, the 11L PhytoBreed roughly a year ago a few PhytoBreeds came in landed at $600 USD–without their automated dosing pump. Typically they retail for €520.

    10. ReeferAl
      April 28, 2012 at 3:26 PM | Permalink

      I built a couple versions of a dorm fridge feeder back in 2008-9.  The posts on Reef Central are all archived now. I tried the thermoelectric fridge and found it just didn’t hold up.  After a couple of months it would no longer maintain a cold enough temp. The final version (which I still have) uses a standard dorm fridge with compressor.  One difference is that mine was intended to provide “constant” food for fish instead of inverts.  That is harder since it requires larger peristaltic tubing.  Mine used 3/8″.  I like the idea of the pipe flowing through the fridge but I suspect you would want to insulate it otherwise it would be a constant drain on the fridge’s cooling ability- especially with a TE fridge as shown.

    11. CraigP
      November 16, 2014 at 5:58 AM | Permalink

      I know this is an old thread but what corals did you keep with the above feeding?

    2 Trackbacks

    1. September 2, 2010 at 9:10 PM

      […] to have it run for 1 minute every 3 hours. Also my refrigerated feeding system was mentioned on GBD …Thanks Eric! Mike Put down the halide and step into the shade…welcome to the darkside […]

    2. […] Re: diy drip feeder? Would be interested in this as well, wouldn't mind something that can dose phyto. This is the only one I've ever seen but it would cost quite allot to set up. Mini Fridge + Dosing Pump = Azoox Continuous Feeder […]

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