Next, the method 3500 can include an operation 3514 of feeding the cultivation wells with reagents, nutrients, or media with the pipette tip 71. Operation 3514 can be performed while the container assembly 200 is being agitated (see operation 3510). In some examples, the pipette tip 71 is operated by the pipetting robot 70. Alternatively, the pipette tip 71 can be operated by hand. Operation 3514 can be similar to operation 3408 described above.