you will get to understand how much to water by reading the plant and understanding your soil . As you know I make my own so I know how it works , I would never go feather light as I do not believe it is good for the microbe life . I have found seeing the leafs looking like what is in the photo means for my soil I have the sweet spot with moisture content . First one before watering , take note of the position of the leafs
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After watering . The age is older but they do the same .
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This is what I aim for . you have made amended soil , so it comes down to what you have used and understand how the amendments work . I tend to have very high organic inputs in mine . One thing you can try is make up a pot full of your soil , water it and give it a day or so then check the soil moisture , I know there is no plant in it , but it will give you a idea on the water holding capacity of the soil . at the stage the plants are in the last photo they where getting 1.2 liter a day for 17 liter of soil . There are no hard and fast rules with organic soil we make . Your inputs are different to mine , so it brings it back to understanding your inputs . Just keep at it mate and you will work it out .