I have some potting soil that I'm using for a self watering planter. It's peat moss based, and I see some perlite in it.
I notice that it's wicking too much water (too wet). I tried the 2 knuckle test and can tell that it's just a little too must down there. I also tried a moister meter, and it shows that moisture is on the high side.
Is there any soil amendments that I can add in to reduce the amount of water this stuff will hold? My goal is to slowly add something to reduce the moisture retention, until I get it just right. But what can I add?