I purchased a planting tray to start my seeds in. This tray has 72 cells for starting seeds in. The cells are open to the main tray in the bottom so that water can flow freely throughout. As you can see, when water is added the pods expand. I have seeded several plants. I am following the directions for the tray (which includes a clear plastic cover) and am placing it in a warm place, out of direct sunlight.
I labeled each column and row so that I can keep track of what is growing where. For instance:
A1, A2, B1 Bell Pepper
C1,C2, B2, D1 Cranberry Bean
B3-B6 Black-eye Peas
A3-A6 Black Mexican Corn
C3-C6 Lemon Balm
D2-D6 Greek Oregano
E1-E6 Celery
F1-F6 Chives
G1-G6 Spinach
H3-H6 Sugar Snaps
H1, H2, I1-I4 Old German Tomato
I5, I6, J6 Sweet Pepper
J1-J5, K6 Carrot
K1-K5 Tennessee Red Corn
L4-L6 Cayenne Pepper