Browse Live Anemones

Anemone Care Guide: Tank, Food, & Compatibility for Experienced Aquarists

Anemones are beautiful invertebrates found in tropical reefs. Their tentacles are venomous, and stun potential prey that comes within reach. Many Anemones have developed a mutually beneficial relationship with clownfish and with some marine crabs. Recommended for experienced marine aquarists only.

Updated on April 9th, 2026

Care Sheets

Anthias Care: Set Up a Thriving Tank for Vibrant, Healthy Fish

Learn how to take care of Anthias, recommended diet and tank setup. Find the right food, supplies and equipment at your neighborhood Petco.

Updated on April 9th, 2026

Care Sheets

Marine Invert Care Guide: Food, Tank Size & Water Quality Essentials

The unique appearance and bright coloring of starfish provide an appealing addition to aquariums. Feather dusters are a type of fan worm found in coral rubble in most tropical waters around the world. Sea urchins have a calcium carbonate skeleton with moveable spines. Marine Inverts are generally more sensitive and tolerate less environmental change than fish.

Updated on October 23rd, 2025

Care Sheets

Mastering Soft Coral Care: Setup, Feeding, & Water for a Healthy Reef

Learn how to care for soft coral, recommended care & habitat setup. Find the right food, supplies & equipment at your neighborhood Petco.

Updated on April 9th, 2026

Care Sheets

Clownfish Care: Your Easy Guide to Tank Setup, Food & Compatibility

Learn how to care for a Clownfish, recommended diet and aquarium setup. Find Clownfish for sale, supplies and equipment at your neighborhood Petco.

Updated on April 9th, 2026

Vet Q & A

Is a 1-foot marine tank big enough for fish? What can I put in it?

It is very difficult to get a good biotope in a just 1 foot long tank unless it is a few feet high. You will not be able to keep fish in it, only invertebrates, maybe a few shrimp or sea anemones. It is much harder to keep the water healthy in a small tank,and the appliances needed for running a salt water aquarium cost pretty much the same (if available) as appliances for a larger tank. I suggest you join a club of salt water aquarists who will be able to start you off perfectly. Your local fish/pet shop should be able to point you to a club.