HUSBANDRY
Fry Survival (FSV)
Proportion of larvae reared through the fragile early window to viable juveniles — the true bottleneck of captive breeding.
Threshold Bands
| Band | Range | State |
|---|---|---|
| Strong | ≥ 60% | OK |
| Marginal | 30–60% | WARN |
| Failing | < 30% | CRIT |
Formula
Larvae surviving to juvenile metamorphosis ÷ hatched.