| Level 1 | Thriving Requirement 1: Shelter Space | |
| Level 2 | Thriving Requirement 2: at least 8 objects or plants with the Semi-Aquatic tag; Saltwater Crocodile Fact Sheet | |
| Level 3 | Release groups and release to the wild | |
| Level 4 | Thriving Requirement 3: Food Grade 2; Fertility Level 1 (+15% fertility) | Before this level: an Observation Network (Observation Platform) in Sumatra Reserve and this species released in Sumatra Reserve |
| Level 5 | Thriving Requirement 4: Platform Floats, at least 1 | |
| Level 6 | Thriving Requirement 5: Aquatic Feeder - Fish, at least 1; Fertility Level 2 (+30% fertility) | |
