Tiger-tailed Seahorse (Hippocampus comes). SUPER HUGE ONE!!! at least 10cm. The patterns are very interesting...
Floral egg crab (Atergatis floridus). This is the first time seeing this rare crab. This crab is listed as a vulnerable species under the Red list of Singapore.
Marine Spider??? These creatures are rather abundant. They move very fast and sensitive to movement in their environment. I've not sure what these are but it does look like spider. Since the reef would be submerged when the tides return, so the "spider" can breathe underwater??
Wriggly Star Anemone.
Polka-dot Nudibranch (Jorunna funebris)
From here onwards, corals overload!!!! :) But please pardon me for not giving the ID, I'm really bad at ID-ing the corals...