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====Experiment "Bruxelles2"====

===Salt Bridges===

I failed a three batches of salt bridges before managing to have one stable made.

===The right protocol===

   * Mix 200 ml water, 5 g of agar and 75g of salt in a cooking pan.
   * Bring it to a boil while mixing regularly.
   * Let it boil for a few minutes (not too much, otherwise you will loose your water)
   * Pour the boiling mix in appropriate containers
     * Reused glass jars (with an opening having a size close to the widest diameter of the pot)
     * Glass petri dishes
   * Let them cool down a bit
   * Place them in the fridge for a few hours

===What not to do===

   * Use hot water from a kettle and mix everything in a cold pot
     * This induces a very uneven mix, where salt and agar are not well dissolved
   * Let it sit in the pot beore pouring it on top of the substrate
     * Warm liquid may harm the microbes in the substrate
     * Most of the agar and salt will sediment at the bottom of the pot, and your mix will not become a gelatin
   * Do not forget that the fridge step is important !
   * I highly suspect gelatin to be inefficient for this process. My successful batch was made from agar-agar from a chemical provider. I think other sources may be fine, but I have not managed to use them properly yet.

===Mud, Tall===

===Mud, Small===

===Vegetable Waste & Compost Tea===