What happens to the coral reefs when the water temperature changes?

Long term temperature changes will cause the reef to die.
Temperature changes cannot be registered in the ocean because of such massive quantities of water.
Microbes die, which causes a break in the food chain.
Reefs adjust rather rapidly and do not get affected by it.
The temperature changes the color of the reef and makes it so that it attracts more or less heat to it

depending on the temperature. When the water temperature rises too much, it causes corals to expel the algae living in their tissues, leading to coral bleaching. Without these algae, the coral loses its color and begins to starve, ultimately dying if the temperature remains high for too long. Additionally, warmer water can also increase the acidity of the water, which makes it harder for corals to build their skeletons and slows down their growth processes. Overall, coral reefs are highly sensitive to changes in water temperature and any significant long-term changes could have devastating consequences for these delicate ecosystems.