I ended up just describing the diversity of the reefs in general. I talked about what the reef is made of, how coral survive, and how animals in the reef rely on each other for survival. I also talked about the behavior of clownfish, the veined octopus, and the mimic octopus. I went on talking about the diversity of traits the animals have. The three were nudibranchs and how they are one of the most colorful animals on the planet, the banded sea snake and its venom, and the blue ringed octopus and how its like a mix of both, where its small, beautiful, and deadly. After all that, I talked about how the reefs were declining and what was causing it. The main points for that were overfishing, cyanide bombing, shark fishing, excessive farm water runoff, and sunscreen from swimmers. The speech ran for close to 8 minutes. Sorry for the poorly written reply, i have to get out of here and get to work in like less than 5 min and I am just writing whatever comes out of my head (I also didnt get any sleep).
Ray