Plan & set up
Start or rebuild a tank
Work through 12 interactive lessons, from preparing your tank to cycling and quarantine.
Start here · get your hands wet
What can we help with today?
Saltwater aquariums do not have to feel overwhelming. Begin with the goal that is closest to what you need right now.
Start here first
Explore by goal
Start with what you need right now
Helpful entry points into the established Saltwater Aquarium Blog library.
Livestock
Choose animals that fit
Explore fish and corals, then check compatibility before making a stocking decision.
Care & water
Keep the system stable
Understand the parameters that matter and build a repeatable aquarium-care routine.
Troubleshooting
Solve a problem
Find established guidance for pests, algae, disease, equipment, and common warning signs.
Gear & reviews
Choose equipment with context
Start with practical guides before comparing products, specifications, or upgrades.
Professional services
Find aquarium help
Find professionals for installation, care, upgrades, vacation coverage, and tank moves in selected U.S. metro areas.
Choose livestock
Choose for the tank you have—or plan for tomorrow
Start with the established Fish and Coral guides, then check risk before stocking.
Fish
Find fish by fit
Use experience level, tank size, reef safety, temperament, and care needs.
Explore saltwater fishCorals
Understand coral types and care
Begin with the established coral guide, then compare light, flow, and placement needs.
Explore aquarium coralsAquarium tools
Plan your setup. Check your stocking choices.
Choose the guide or chart that fits your next aquarium decision.
Build your aquarium · 12 lessons
Interactive Saltwater Aquarium Setup Guide
Follow the setup process one lesson at a time, from preparing your tank and equipment through cycling and quarantine.
Start interactive setup guide (opens in a new tab)Plan your livestock
Fish Compatibility Chart
Compare fish compatibility risk and tank-size context before adding another species to your stocking plan.
Open Fish Compatibility ChartEstablished guides
Popular paths through the reef-keeping library
Practical articles to help you build and care for a healthy saltwater aquarium.
Beginner path
Five hardy saltwater fish for beginners
Start with colorful, manageable choices suited to a stable first aquarium.
Explore guide
Popular livestock
Twenty popular saltwater fish
Get oriented to familiar species, then narrow the list by tank fit and temperament.
Explore guide
Coral guide
Understand aquarium corals
Compare coral groups, care needs, placement, and the conditions that support growth.
Explore guide
New aquarium
Set up a saltwater aquarium
Follow the major decisions from choosing a tank through setup and the first cycle.
Explore guide
Low-light options
Explore low-light corals
Review coral choices that can suit lower-light areas and less demanding displays.
Explore guide
Fish health
Recognize and treat saltwater ich
Learn the warning signs and established treatment approach for a common parasite.
Explore guideNew tank journey
Plan, set up, cycle, then stock carefully
Work through the Interactive Saltwater Aquarium Setup Guide in 12 lessons, with the written guide alongside whenever you want more detail.
- Plan your aquarium
- Choose your tank
- Choose equipment
- Set up the aquarium
- Cycle before stocking
- Add first livestock
- Start a care routine