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  • Apr 21' - Nov 22'

    Elise Chalcraft

    Workshop Producer and Manager / Aquaponics Assistant

     I have worked as an Aquaponics Assistant in Mediamatic's Greenhouse from April - September 2021 and moved from the greenhouse upstairs into the office to work as the workshop manager and producer...
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  • 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!

  • 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...
  • 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.

  • Hortus Project

    Knowledge about the Hortus Project Signs

    The Hortus Project was implemented some time ago to teach people about the different properties of our city's flora. You can find little oval signs in the grow beds of Mediamatic, but also spread...
  • 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 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...

  • Blue Sage

    Salvia azurea

    Find more about this plant on Wikipedia . 
  • mediamatic eten Justin Knelange

    From Grandma's Kitchen to new Culinary Horizons

    In conversation with our new head chef Panos Fakos

    As a small boy, Panos was introduced to the world of spices and cooking by his loving grandmother. Food has always played a big role in his upbringing where his mother and her sister paved the path...

  • 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...

  • Chewable Plants

    Is it possible to give an ordinary piece of rubber a new afterlife?

    A human can produce an average of 0.5 to 1.5 liters of saliva each day or 0.3 to 0.4 ml per minute. This production of saliva can be increased or stimulated by eating, drinking or chewing some...

  • Field marigold

    Calendula arvensis

    Find more about this plant on Wikipedia . 

  • 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'...
  • Knowledge Page Sadhbh O'Donnell

    Many meanings of curious composting

    A possible bokashi exhibition

    In case of future plans with the Bokashi, this knowledge page is to provide information about a possible exhibition in the Bokashi space behind the restaurant. It would be a very interesting topic to...
  • 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...

  • Aquaponics at Mediamatic Fabriek

    Cultivating our own food

    Mediamatic Fabriek, Mediamatic’s new location, is situated in the Van Gendthallen, old ship building halls on the Oostenburgereiland east of the center of Amsterdam. They are huge, and are surrounded...
  • 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...

  • Canadian goldenrod

    Solidago Canadensis

    Find more about this plant on Wikipedia .

  • Indian cress

    Tropaeolum majus

    Find more about this plant on Wikipedia . 
  • From our Faraway Friend Wendy Monroe

    Trial and Error

    A photo essay

    Our system with the five half barrel beds is up and running now, the plants in the beds have taken root and we will be taking delivery of 30 Channel Catfish next week. We will be getting them from...

  • Aquaponics

    Fish feeding plants, plants feeding fish

    Mediamatic has assembled a team to work on aquaponics projects at Mediamatic Fabriek. View their work here. On this page you can find research on future aquaponics projects.

  • Pruning tomatoes

    Light and air

    My father has years and years of experience growing tomatoes. The first thing I learned from him was pruning. 'The most important thing', according to him.

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