aquarium camera

Guys, good night! I don't know anything about cameras and I'm always in this group to answer any questions.

I practice planted aquariums in small aquariums and it frustrates me a little trying to take photos with the iPhone the way I would like.

I would like to take photos with zoom and that are not distorted due to the pixels. I want to be able to capture the fish in movement without blurring the image or shaking and also capturing the lighting well.

If it's a camera that records too, even better.

Furthermore, I would also like to be able to get closer to the aquarium and take those close-up photos of a small object.

Can you help me which technical specifications I should observe when choosing the camera and lenses or tell me options, please friends? Below are some examples of photos that I imagine taking or something close to that for beginners.