This is true, no matter how small the catfish! In fact, catfish also have extremely strong senses of smell, hearing, sight, and touch! They also have another sense called "electroreception" that allows them to detect electric fields. This allows them to locate the electric fields produced by their prey. They can use this to find insect larvae and worms that are hidden in the mud!
Here's an article from Indiana Game and Fish that can tell you all about the strong senses that catfish have.