Hydroponic Seed Starter

Hydroponic Propagation System. Ample space for up to 32 plants, including a built-in watering aid with a hole for an air pump and covers for unused slots. The slots perfectly accommodate propagation cubes, and with slight adjustments, rockwool cubes as well. I printed everything in PETG with 3 walls, resulting in a highly robust system. Roots have sufficient downward space until the plants are strong enough for transplanting. The watering aid fits snugly into a square; some force is required for insertion. Please feel free to suggest improvements or modifications.