Schoolmaster snapper are gonochorist, meaning males and females are separate.
They spawn over most of the year, with the majority of the spawning happening during middle to late summer.
They spawn during April–June off Cuba.
They reproduce by spawning in open water with both male and female fish releasing their gametes at the same time.
The fertilized eggs then settle to the bottom, where they are left unguarded.

Most mature schoolmaster snapper average a pound (0.4 kg) or less in shallow water.
Big individuals on the deep reefs may reach six or seven pounds.
They can grow up to 8 lb and 24 in (62 cm) long, but individuals 12–14 inches (35 cm) long are more commonly observed.

 As fish grow longer, they increase in weight, but the relationship is not linear.
 The relationship between length (L) and weight (W) for nearly all species of fish can be expressed by an equation of the form:
Invariably, b is close to 3.0 for all species, and c varies between species.
A weight-length relationship based on 100 schoolmaster snapper ranging in length from 2 to 7 in (50 mm to 180 mm) found the coefficient c was 0.000050015 and the exponent b was 2.9107.
  This relationship suggests a 12.5-inch schoolmaster snapper (320 mm) will weigh about 2.2 lb (1 kg).
Schoolmaster snapper are gonochorist, meaning males and females are separate. They spawn over most of the year, with the majority of the spawning happening during middle to late summer. They spawn during April–June off Cuba. They reproduce by spawning in open water with both male and female fish releasing their gametes at the same time. The fertilized eggs then settle to the bottom, where they are left unguarded.
Most mature schoolmaster snapper average a pound (0.4 kg) or less in shallow water. Big individuals on the deep reefs may reach six or seven pounds. They can grow up to 8 lb and 24 in (62 cm) long, but individuals 12–14 inches (35 cm) long are more commonly observed.
 As fish grow longer, they increase in weight, but the relationship is not linear.  The relationship between length (L) and weight (W) for nearly all species of fish can be expressed by an equation of the form:
Invariably, b is close to 3.0 for all species, and c varies between species. A weight-length relationship based on 100 schoolmaster snapper ranging in length from 2 to 7 in (50 mm to 180 mm) found the coefficient c was 0.000050015 and the exponent b was 2.9107.   This relationship suggests a 12.5-inch schoolmaster snapper (320 mm) will weigh about 2.2 lb (1 kg).
Schoolmaster snapper