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  •  Aquaponics
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  • Future scenarios for our beloved greenhouse

    An honest review of 10+ years of aquaponics

    We first started experimenting with aquaponics in 2012 at our previous location at the van Gendthallen . After more than 10 years of learning, growing and enjoying an abundance of fresh herbs, we...
  • Multispecies
  • piss
  • Sustainability
  • Aquaponics
  • Biology
  • Ethics

  • The green gold

    Celebrating our Wasabi's 2nd birthday

    After some cold and rainy months in aquaponics, we were overjoyed to see the first aquaponics plant in bloom. This early bloomer has got to be a bit of a diva, as most plants are not showing any...

  • Bokashiponics

    Bokashi: a nutritious wondertea or an overhyped fairytale?

    We are investigating what it would take to turn our aquaponics system into a hydroponics system. The main question is where we will source our nutrients. We want our fertilizer to be as organic and...

  • Updates from the aquaponics

    Bad news, good news: a critical examination of what happened in the greenhouse

    The accident arises doubts on the ethic of this practice

  • Determining the optimal nitrogen level for the…

    Nitrogen is a key component in chlorophyll, so it plays a crucial role inside the plant: but what happens when it's too much?

    Various researches have shown the correlation between pests infestation and nitrogen leaf content - which depends on the amount of fertilizer you add. What is, then, the fertilizer amount we can...

  • Closing the Tap

    Turning to the canal to reduce our tapwater consumption

    The goal is simple. We want to stop using clean tapwater to irrigate the plants at Dijkspark and instead use a watersource that may be considered unconventional: the canal. The common perception of...

  • Piss or get off the pot!

    New perspectives for the greenhouse: thinking about an Anthroponic system

    It's a rich solution, we produce it, sometimes it's inside us and sometimes it's not - and it connects us all, from the tiniest insect to the mastodontic blue whale. Is it blood? No, it's urine! Let'...
  • Mediamatic Biotoop Dijkspark Elise Chalcraft

    Elderflower Champagne 2.0

    Popping champagne straight from the garden!

    The first fermentation step for making Elderflower champagne started last week with a trial test of 20L!  Here you can find the process, recipe, and some great action shots of the flowery business!
  • Mediamatic Biotoop Dijkspark Thibaut Counot

    Serving our fish a special rat-atouille

    Turning pests into fish food

    Amsterdam is facing an increasing rat population. Can we turn this to our advantage?

  • Harvest time

    should i wait or can i already harvest ??

    The well-known dilemma of harvest-time executed in a case-study of the generic cucumber. You are eager to taste your well-earned fruits, but also reckon they still grow bigger and become more...
  • Mediamatic Biotoop Dijkspark Vera Catalano, Doudouce Knol

    What does a day in the Aquaponics greenhouse look…

    Morning The first thing we do in the morning is to check the pH in the subtank. The pH, a measure of how acidic the water is, determines the health of the fish, the creation of bacteria in the system
  • Mediamatic Biotoop Dijkspark Elise Chalcraft

    7 kilos of Happiness

    The ins and outs of weighing our fish

    Every 6 months, we weigh our 128 African catfish. This is done to get a snapshot into the growth rate of the catfish and check on their general wellbeing. The Aquaponics Greenhouse currently has five...
  • Mediamatic Biotoop Dijkspark Thibaut Counot

    A year later: What our wasabi flowers are…

    As the Wasabi growing in our aquaponics greenhouse starts to flower, we revisit last year’s tests and learn how to care and nurture this famously fussy crop.
  • Mediamatic Biotoop Dijkspark Elise Chalcraft

    Duckweed taste testing 2.0

    Using duckweed as an alternative food source to feed our fish

    Let me tell you about an aquatic plant I have come to love... Duckweed is a floating aquatic plant commonly found in ponds, lakes, and other still-moving bodies of water. Duckweed is commonly seen as...
  • Mediamatic Biotoop Dijkspark Elise Chalcraft

    Tasting before wasting

    Optimizing our African Catfish feed

    My project for the past 8 weeks has been to look at how we could use waste streams from both the aquaponics greenhouse and the kitchen to feed our catfish to make the system as circular as possible.
  • 1 Jan 2003

    Rebecca Gomperts

    Women's activist

    Art, the sea and the struggle for selfdetermination for women.

  • Haeckel-File #2: Haeckel the fraud

    Haeckel was accused of committing fraud in order to give credibility to his theories. Is there any truth to the allegation?

  • On soil fertility and the decline of society

    The last words of Justus Von Liebig, the father of organic Chemistry

    What does soil fertility loss mean? The Earth’s soils can tell many stories to those able to read them.
  • Knowledge Page Sadhbh O'Donnell

    Bokashi: Questions to Simon Vos

    Frequently asked questions

    Here are some questions that have been previously asked so that maybe you don't have to! Simone Vos from agriton has been great for answering questions and is the primary source for understanding the...
  • Knowledge Page Sadhbh O'Donnell

    Being responsible for Bokashi

    and other useful information

    The amount of time to give to Bokashi really depends on what is happening at Mediamatic. Is the restaurant open? Is communal lunch happening? What season is it?  Being responsible for the Bokashi...

  • Meervallenmeting

    inventarisatie van onze vis

    Voor aquacultuur is het gebruikelijk om je handelswaar in de gaten te houden. Het is belangrijk om te weten hoe snel je vissen groeien, het aantal vissen en het gewicht van je vissen. Voor de...
  • Knowledge Page Sadhbh O'Donnell

    Bokashi: How to

    Bokashi introduction

    At the back of our kitchen you will see we have our big green bokashi bins which we use for the kitchen and communal lunches. Here you will find a more detailed introduction to the process and use...
  • Mediamatic Biotoop Dijkspark Kevin Siedsma

    Help! My seeds aren't germinating!

    My time here at the aquaponics greenhouse  has been a touch and go learning experience. Let me elaborate by going into detail about my trials and tribulations setting up the nursery. So all you

  • PH meter

    Brand new easy to use PH & Temp meter

    To ensure the right living conditions for our fish we need to measure the PH daily. The liquid tests are quite a hassle and they're not always that accurate. So we bought an electronic one.

  • Innovative Citizen 2014

    Aquaponics & Mycelium Workshop Dortmund

    Between 27.09 and 2.10 in the 'Innovative Citizen 2014' was held in Dortmund. It operated as a hub between technology, innovation and society. Mediamatic was there for two workshops.

created Jip Santen modified Jip Santen

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