Hi All. Just spending my Sunday afternoon avoiding work and repotting my cactus. My knowledge of things horticultural is small, to say the least, but I do know it needs repotting as the roots are sticking through the bottom of the pot. However, when looking online for advice, it all seems to say "repot to the same level of soil" or similar. What does this mean? Does it mean my cactus needs to be level with the top of the new pot, as it was with the old, or does it mean to pot it lower down in the pot with less soil, so if its old and new pots were placed side by side, the top of the cactus would be at the same height regardless of whichever pot it's in? Please help! Am confused.