I tried everything on the market then i found out about calcined clay from Allen Repashy on a different forum. Its used in soil for retaining water. Its crushed clay pots refired at 1200 degrees.
Best hathing medium ive ever tried for my leachies. Its light tan when dry and dark brown when wet so its easy to check the wetness level. And i punch holes in my egg tubs so excess water drains out. Makes it perfect every time.
I ogt mine here http://www.dallasbonsai.com/store/calcined_clay.html
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