Seaweed

I have a dedicated location for seaweed. I use the limestone + water recipe since I think using saline water or carbon dioxide is expensive, and would rather just make more machines than use up these resources (though I might switch to the iron ore dust recipe later).

Recipe 1
Inputs:


 * None

Intermediate steps:



Outputs:


 * Seaweed

Recipe 2
Inputs:


 * Iron ore


 * Salt
 * Slaked lime

Intermediate steps:


 * Turn the salt into salt water
 * Do a mini-processing unit on the iron ore to turn it into iron dust

Outputs:


 * Seaweed
 * Stone (from the iron processing)
 * Gravel (from the iron processing)