A little more info on the Sergeant Majors...
When the Males are ready to mate, they will clear off a bit of rock of all algae and growth, and start to display and attract females. When a female is interested, she will go over the cleaned area, and deposit her eggs. The Male will often woo several different females to lay eggs in the same area, and fertilize the eggs as they are laid. The male then tends the egg garden by defending it aggressively from predators, clearing off debris, and aerating the eggs by fanning water past with their pectoral fins. The Male changes color from his usual yellow and black to a deep purple and black.
The eggs will mature and hatch over about 7-10 (?) days, and as they start getting ripe, you will be able to see the change in color from a deep purple to a bright red. The last two days, if you look close, you will be able to see little eyes in the egg yolks.
Next time when you see a dark colored sergeant major and he is acting aggressive, look around and try to spot his clutch of eggs. Sometimes they are clever, and patrol an area a few feet away from the clutch
Tom
When the Males are ready to mate, they will clear off a bit of rock of all algae and growth, and start to display and attract females. When a female is interested, she will go over the cleaned area, and deposit her eggs. The Male will often woo several different females to lay eggs in the same area, and fertilize the eggs as they are laid. The male then tends the egg garden by defending it aggressively from predators, clearing off debris, and aerating the eggs by fanning water past with their pectoral fins. The Male changes color from his usual yellow and black to a deep purple and black.
The eggs will mature and hatch over about 7-10 (?) days, and as they start getting ripe, you will be able to see the change in color from a deep purple to a bright red. The last two days, if you look close, you will be able to see little eyes in the egg yolks.
Next time when you see a dark colored sergeant major and he is acting aggressive, look around and try to spot his clutch of eggs. Sometimes they are clever, and patrol an area a few feet away from the clutch
Tom