Learn before you buy
Saltwater aquarium guides
Step-by-step help in plain English, from setting up your first tank to choosing fish that get along with your corals. For one animal at a time, see the Species Guide.
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How to Start a Saltwater Aquarium
Everything a first-time reefer needs to plan, set up and cycle a saltwater tank, with a realistic timeline from empty glass to first fish.
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How to Acclimate Saltwater Fish, Corals and Invertebrates
How to move new fish, invertebrates and corals from the shipping bag into your tank safely, with step-by-step float and drip methods and what to watch for afterward.
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Best Saltwater Fish for Beginners
Ten hardy saltwater fish that suit a first tank, which ones get along, the order to add them, and popular fish to hold off on.
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Reef-Safe Fish and Invertebrates
What “reef safe” means, which families tend to nip corals or eat shrimp, and live lists of our fish and invertebrates sorted by reef safety.
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