Things You'll Need
- Saltwater aquarium
- Full-spectrum lighting
- Rocks and decor
- Hydrometer
- Thermometer
- Pumping and filtration system
- Live food
Instructions
Place starfish in a 30-gallon or larger tank. The tank should have full-spectrum lighting.
Decorate the tank with rocks and decor that mimic the starfish's natural habitat.
Measure the water's salinity levels with a hydrometer twice a week. Keep the salinity between 1.022 and 1.025 to maintain an environment similar to the natural starfish habitat. Check the water temperature with a thermometer, and maintain the temperature between 72 and 78 degrees Fahrenheit.
Change 10 to 15 percent of the water volume every week. Use a quality pumping and filtration system.
Feed starfish, which are carnivores, commercial frozen food. Smaller starfish can eat micro-algae. Starfish food is available at pet stores. Feed starfish small meals several times per week.