Rurumo
Well-Known Member
Hard to beat the 3/8 pumice. Also, personally, I only tried a Cootz type mix in a 5 gal pot once and I got a lot of deficiencies. This mix works well with big pots because of the massive root system you develop, all that surface area is able to extract the minerals you need from the rock dusts. In the 5 gal, I ended up having to feed Neptune's harvest and top dress with langbeinite a few times. Usually, the cure for most issues that occur in a Cootz type mix in a small pot is to transplant up.