There are amazing things in the deep. There are many types of fish. Some are not even fish, like starfish, jelly-fish, sea slug, coral, and sponges. (The sponges you use to clean your dishes are not the kind of sponges from the ocean.)
Star fish have at least 5 arms. Jellyfish have tenticles (or a tenticle) but their tops are squishy so if you're going to swim in the water, you might see their tops. The sea slug is purple and swims like a slug would do on land. Coral is hard and is a good hiding place for fish. Sponges absorb water and sponges such as the trumpet sponge are a nice home for fish.
There are lots of other animals like the squid, octopus, angular fish, shark, dolphins, whales, seals, sea turtles, krill, shrimp, clown fish, wolf fish, porpoises, cuckoo wrasse, lunpsucker, plankton, sting ray, moorish idol, clam, pollack, cuttlefish, swordfish, Atlantic Pipefish, ocean sunfish, splitlure frogfish, eels, lantern fish, oarfish, and anchovy. You can think about all those fish all you want, but I think God made every fish perfect.