Reef & Saltwater Fish

Explore stunning reef and saltwater fish species, saltwater aquarium setup, and marine ecosystem management. Learn about specific challenges of saltwater keeping and how to create thriving marine environments.

A Guide to Keeping Rays
Rays need huge tanks, fine sand, and experienced keepers willing to commit to their long lives and sensitive care requirements.
Adding Knifefish To Your Tropical Fish Tank
Knifefish are exotic and intelligent, but they're challenging to keep and need plenty of space and hiding spots to thrive.
Adding Octopuses To Your Tropical Fish Tank
Octopuses are tricky to keep but incredibly rewarding pets, here's what you need to know before adding one to your tank.
Angel Fish
Angel fish are popular tropical aquarium fish that need plenty of space, the right tank mates, and calm water to thrive.
Angler Fish
These deep-sea oddities can thrive in home aquariums if you meet their unusual needs and feeding requirements.
Butterfly Fish
Butterfly fish need fresh coral and multiple daily feedings, making them unsuitable for beginners despite their popularity in home aquariums.
Cardinal Fish for Your Aquarium
Cardinal fish are easy to care for, peaceful aquarium fish that thrive with plenty of hiding spots and live food.
Caring for Snappers
Snappers need plenty of space and the right conditions to thrive, but they're hardy fish that can live for decades if you care for them properly.
Clown Fish
Clown fish make hardy, colorful aquarium pets that thrive in community tanks and form fascinating relationships with anemones.
Damsel Fish
Damsel fish are colorful and tough but aggressive in tanks, requiring plenty of space and careful tank mates to thrive.
Dragonettes
Dragonettes need constant access to tiny crustaceans and pristine water conditions, making them a challenging but stunning addition to mature marine aquariums.
Lionfish
Lionfish are venomous but can make good aquarium fish if you understand their needs and handle them with care.
Scorpion Fish
Scorpion fish make striking aquarium pets with their bright colours and spiny fins, but they're venomous and need careful handling and feeding.
Seahorses
Seahorses need expert care, captive-bred stock, pristine water conditions and frequent feeding to thrive in a home aquarium.
Sharks
Some shark species can thrive in home aquariums if you provide the right tank size, hiding spots and compatible tank mates.
Swordtails
Swordtails are colorful, playful fish that adapt well to freshwater tanks and need groups of five or more to thrive safely.