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You are here: myPetSmart.com > Care Guides > Fish Nutrition And Maintenance 0


Experience Level: Beginner

Nutrition and Maintenance

• Snails will eat green algae from the aquarium, but they will also accept all kinds of commercial flake and pellet foods. Lobster, crabs and shrimp must be fed sinking pellet foods that they can find at the bottom of the tank.

• Feed lobsters, crabs and shrimp as much food as they will consume in three minutes, twice a day.

• Vary their diet by including frozen (thaw first) or freeze-dried brine shrimp, bloodworms, tubifex worms and other foods.
• Make sure fish do not eat all of the food before the invertebrates can find it if keeping them in an aquarium with fish.

Maintaining a healthy environment for your Aquatic Invertebrates is an ongoing commitment. A newly set up aquarium requires more frequent monitoring with weekly water testing and changing if necessary. Once the water quality is stable, you can keep your aquarium in great shape with minimal effort by following this schedule:

Maintenance Schedule

Feed Aquatic Invertebrates twice daily.

Check water temperature and general health.


Remove 10% of the water and replace with dechlorinated water.

Test water quality weekly in new aquariums.

Scrub glass to remove algae, if necessary.


Vacuum gravel and replace 25% of water with dechlorinated water.

Test water quality in established aquariums.

Perform filter maintenance (replace filter cartridge, replace carbon, rinse pre-filter, etc.).

Scrub algae and prune live plants, if necessary.

Always wash your hands before and after handling Aquatic Invertebrates, their water or aquarium. Adults should assist young children with hand washing and monitor children around pets. Do not clean habitats or equipment in the kitchen sink or near food preparation areas.