Mannnn colanders are a pain to cut out. Sifted Akadama , pumice , Lava combo.. cut a lot of the roots back on this one to closer roots , and cut out downward facing / overlapping roots. Tied onto a wooden board to promote radial roots and widening base. Cut into one side to sprout new roots. I didn’t have quite a grow box to use for this one, but I think the grow pot will do it’s job for a few seasons.. planted a bit lower to grow those roots/ radial nebari. Had to mist the roots a lot I tried a few other options before going w this pot. I can’t grow in ground because how watery/ clay my soil is. Maybe future use grow bed if not a lot of progress is seen over next few seasons.