| Tank No. | Additional Zooplankton Level | Number of Fishes |
| 1 | H | 0 |
| 2 | L | 0 |
| 3 | H | 1 |
| 4 | L | 1 |
| 5 | H | 5 |
| 6 | L | 5 |
| 7 | H | 10 |
| 8 | L | 10 |