How to Care for Saltwater Fish

Find answers to your questions about caring for saltwater fish and marine aquariums.
Wrasse fish with green, orange and blue striped scales swimming in tank closeup
Stunning Photos of Different Types of Wrasse Fish
illustration of saltwater fish
The 28 Best Saltwater Fish for Beginners
Blue green chromis fish with light blue and silvery scales
Blue Green Chromis: Fish Species Profile
Swallowtail angelfish (Genicanthus sp.), front view
Swallowtail Angelfish: Fish Species Profile
Illustration of the lifespan of popular aquarium fish
Average Lifespans of Different Aquarium Fish Species
Clownfish in marine tank
Saltwater Aquarium Fish Compatibility
Stunning red killifish swimming in an aquarium.
Guide to Killifish
Powder-blue surgeonfish (Acanthurus leucosternon)
16 Tang and Surgeonfish Species to Know
Snowflake Eel
Snowflake Eel (Snowflake Moray) Profile
Juvenile Brown-banded Bamboo Shark, Chiloscyllium punctatum,
Brownbanded Bamboo Shark Breed Profile
Yellow tang tropical fish with coral backdrop
Yellow Tang: Fish Species Profile
Bird Wrasse Fish
Bird Wrasse (Bird Fish): Fish Species Profile
Six Line Wrasse with coral background
Six Line Wrasse: Fish Species Profile
Orchid Dottyback on reef
Dottyback: Fish Species Profile
Balantiocheilus melanopterus - Bala Shark in a tank
Bala Shark Fish Species Profile
Red Lionfish (Pterois volitans)
Beware of Poisonous Fish in Saltwater Aquariums
Firefish Goby
Firefish Goby (Magnificent Dartfish)
Hawaiian squirrelfish or Striped Squirrelfish.
Striped Squirrelfish Care Guide & Species Profile
8 Cutest Aquarium Critters in the Sea
8 Critters to Make Your Aquarium Cuter
peppermint angelfish
Most Unique and Rare Saltwater Aquarium Fish
Ocellaris Clownfish and Anemone
Clownfish and Anemone Matches
Tiger barb or Sumatra barb Puntius tetrazona tropical aquarium fish
Common Fish Names Beginning With the Letter T
Calcinus laevimanus (Hawaiian hermit, dwarf zebra hermit crab) - with sponge
9 Top Marine Hermit Crabs for Reef Tanks
Blue legged hermit crab
Reef Tank Janitors: Hermit Crabs and Snails
Black Saddled Toby (Canthigaster valentini)
All About Pufferfish Species
Lemonpeel Angelfish
Lemonpeel Angelfish: Fish Species Profile
Acanthurus japonicus
Powder Brown Tang (Acanthurus nigricans)
Cute Puffer Fish with Black and White Spots
Fish Mouth Types and Their Uses
Tigertail Seahorse
Tigertail Seahorse
Lionfish Species Profile
How to Collect Your Own Tropical Aquarium Fish
Collecting Your Own Tropical Fish
Clown Triggerfish
Avoiding Aggression in Saltwater Fish
Yellow Longnose Butterflyfish
Yellow Longnose Butterflyfish (Forceps Fish)
A starfish in the sand
Buying Starfish
Portrait of Mandarin Fish Synchiropus splendidus, Banda Neira Island, Indonesia
Mandarinfish Profile
Common seahorse in watter
How to Care for a Common Seahorse (Spotted Seahorse)
Moorish idol fish
Moorish Idol (Zanclus Cornutus): Fish Species Profile
Flame Hawkfish
Flame Hawkfish (Red Hawkfish)
Flame Angelfish
Flame Angelfish Breed Profile
Striped sailfin tang
Sailfin Tang (Pacific Sailfin Tang)
Redlip Blenny
Blenny Fish Species Profile
Ornate Wrasse (Thalassoma Pavo) Colorful Fish Underwater
All About Saltwater Wrasses for Aquarium Hobbyists
Pygoplites diacanthus, sub-adult, Egypt
Regal Angelfish
Yellowtail Coris (Wrasse)
Yellowtail Coris Wrasse Fish
black sturgeonfish
Convict Tang: Fish Species Profile
rockmover wrasse
Dragon Wrasse Fish Breed Profile
Adult Emperor Angelfish
Emperor Angelfish: Species Profile
Pacific blue tang
Pacific Blue Tang
Achilles Tang or Surgeon Fish
Achilles Tang Fish Breed Profile
Orange shoulder tang fish
Orange Shoulder Tang (Orangeband Surgeonfish)
Black Triggerfish on coral reef background. Molokini, Maui, Hawaii.
How to Care for Black Triggerfish in Your Aquarium
Camelback Shrimp
Camelback Shrimp (Hinge Beak Shrimp): Species Profile
Yellow Eye Kole Tang
Kole Tang (Ctenochaetus strigosus)
Colourful Juvenile Chevron Tang or Hawaiian Bristletooth Ctenochaetus
Chevron Tang (Hawaiian Bristletooth)
Pinktail Durgon (Melichthys vidua), near Kona
Pinktail Triggerfish (Melichthys vidua)
Red Saddleback Clownfish closeup with sea anemone - Thailand
How to Care for Fire Clownfish
Bluespine Unicornfish (Naso unicornis)
Naso Tang
Black & White Bandit Angelfish
Black and White Bandit Angelfish Profile
Goby fish in an aquarium
Sand Sifting Gobies in Your Saltwater Aquarium
Aquarium Native Gold Fish
Freshwater Aquarium Fish