1. Insects: Tidewater gobies eat insects that fall into the water, such as flies, beetles, and ants.
2. Small Crustaceans: They also eat small crustaceans like amphipods, isopods, and shrimp.
3. Mollusks: Tidewater gobies prey on small mollusks such as clams and snails.
4. Worms: Worms are another important part of their diet, including polychaetes, oligochaetes, and nematodes.
5. Fish Larvae and Eggs: Tidewater gobies sometimes feed on fish larvae and eggs of other species.
6. Algae and Detritus: They also consume algae, diatoms, and other organic matter found on the bottom of their habitats.
The diet of tidewater gobies may vary depending on the availability of food sources and the specific location of their habitat.