Seahorses swim slowly but prey on small, quick-moving animals.  Tel Aviv University researchers have discovered that seahorses can move their head up in an incredible 0.002 seconds. This causes a powerful flow of water that snags their prey right into the seahorse’s mouth.

https://english.tau.ac.il/news/seahorses

https://journals.biologists.com/jeb/article/224/17/jeb243282/272028/Rearing-seahorses-trigger-powerful-gulps