Is this root rot? if so, how can i fix it? This is my first time cleaning the plant, which is quite small, and the root is blackened. : r luckybamboo Minecraft Cherry Bonsai Treehouse Build Survival Base Shade Hanging Basket Roots on 9th Philodendron Bob Cee variegated LEGO Japanese Red Maple Bonsai Tree #10348 DIY Light Bundle Light My Bricks USA ZZ Plant Large (2 3' tall) Cement Grey Planter Hardy, drought tolerant, low maintenance.