Hydroponic Net Cup Pots + Twin Canaries Chart - 5&rdquo; Net Pot - 1 Pot Using Net Pots allows the roots to grow through the mesh for better breathing and growth Plants love net pots because they thrive on good air circulation in the root zone, exactly what net pots do best You can use them with grow rocks or rockwool grow cubes They come in five different sizes, 2'', 3'', 3.75'', 5'' and 6'' Twin Canaries Chart Included.