WiseTails
Aquatic Species Library

Test the water.
Know the species.

Freshwater or marine, aquarium care starts before any animal arrives. Explore practical guides for fish, corals and invertebrates, including water quality, feeding, compatibility and early warning signs.

SOURCE-LINKED STARTING POINTS

Browse species guides

121 of 121 guides

Acan Coral

Corals · 6 reviewed care topics · 2 linked sources

Acropora Coral

Corals · 6 reviewed care topics · 2 linked sources

African Cichlid

Freshwater fish · 6 reviewed care topics · 2 linked sources

Amano Shrimp

Freshwater invertebrates · 6 reviewed care topics · 2 linked sources

Apistogramma

Freshwater fish · 6 reviewed care topics · 2 linked sources

Assassin Snail

Freshwater invertebrates · 6 reviewed care topics · 2 linked sources

Bala Shark

Freshwater fish · 6 reviewed care topics · 2 linked sources

Bamboo Shrimp

Freshwater invertebrates · 6 reviewed care topics · 2 linked sources

Banded Archerfish

Brackish fish · 6 reviewed care topics · 2 linked sources

Betta Fish

Freshwater fish · 6 reviewed care topics · 2 linked sources

Birdsnest Coral

Corals · 6 reviewed care topics · 2 linked sources

Black Neon Tetra

Freshwater fish · 6 reviewed care topics · 2 linked sources

Blue Tang

Marine fish · 6 reviewed care topics · 2 linked sources

Blue-Green Chromis

Marine fish · 6 reviewed care topics · 2 linked sources

Boesemani Rainbowfish

Freshwater fish · 6 reviewed care topics · 2 linked sources

Bristlenose Pleco

Freshwater fish · 6 reviewed care topics · 2 linked sources

Brittle Star

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Bubble Coral

Corals · 6 reviewed care topics · 2 linked sources

Bubble-Tip Anemone

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Bumblebee Goby

Brackish fish · 6 reviewed care topics · 2 linked sources

Candy Cane Coral

Corals · 6 reviewed care topics · 2 linked sources

Cardinal Tetra

Freshwater fish · 6 reviewed care topics · 2 linked sources

Celestial Pearl Danio

Freshwater fish · 6 reviewed care topics · 2 linked sources

Cherry Barb

Freshwater fish · 6 reviewed care topics · 2 linked sources

Cherry Shrimp

Freshwater invertebrates · 6 reviewed care topics · 2 linked sources

Chili Rasbora

Freshwater fish · 6 reviewed care topics · 2 linked sources

Clove Polyps

Corals · 6 reviewed care topics · 2 linked sources

Clown Loach

Freshwater fish · 6 reviewed care topics · 2 linked sources

Common Pleco

Freshwater fish · 6 reviewed care topics · 2 linked sources

Congo Tetra

Freshwater fish · 6 reviewed care topics · 2 linked sources

Copperband Butterflyfish

Marine fish · 6 reviewed care topics · 2 linked sources

Coral Beauty Angelfish

Marine fish · 6 reviewed care topics · 2 linked sources

Corydoras Catfish

Freshwater fish · 6 reviewed care topics · 2 linked sources

Diamond Watchman Goby

Marine fish · 6 reviewed care topics · 2 linked sources

Discus

Freshwater fish · 6 reviewed care topics · 2 linked sources

Duncan Coral

Corals · 6 reviewed care topics · 2 linked sources

Dwarf Gourami

Freshwater fish · 6 reviewed care topics · 2 linked sources

Ember Tetra

Freshwater fish · 6 reviewed care topics · 2 linked sources

Emerald Crab

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Emperor Angelfish

Marine fish · 6 reviewed care topics · 2 linked sources

Endler's Livebearer

Freshwater fish · 6 reviewed care topics · 2 linked sources

Favia Coral

Corals · 6 reviewed care topics · 2 linked sources

Fighting Conch

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Figure-Eight Puffer

Brackish fish · 6 reviewed care topics · 2 linked sources

Firefish Goby

Marine fish · 6 reviewed care topics · 2 linked sources

Flame Angelfish

Marine fish · 6 reviewed care topics · 2 linked sources

Foxface Rabbitfish

Marine fish · 6 reviewed care topics · 2 linked sources

Freshwater Angelfish

Freshwater fish · 6 reviewed care topics · 2 linked sources

Frogspawn Coral

Corals · 6 reviewed care topics · 2 linked sources

German Blue Ram

Freshwater fish · 6 reviewed care topics · 2 linked sources

Glass Catfish

Freshwater fish · 6 reviewed care topics · 2 linked sources

Goldfish

Freshwater fish · 6 reviewed care topics · 2 linked sources

Green Star Polyps

Corals · 6 reviewed care topics · 2 linked sources

Green-Spotted Puffer

Brackish fish · 6 reviewed care topics · 2 linked sources

Guppy

Freshwater fish · 6 reviewed care topics · 2 linked sources

Hammer Coral

Corals · 6 reviewed care topics · 2 linked sources

Harlequin Rasbora

Freshwater fish · 6 reviewed care topics · 2 linked sources

Hillstream Loach

Freshwater fish · 6 reviewed care topics · 2 linked sources

Honey Gourami

Freshwater fish · 6 reviewed care topics · 2 linked sources

Kenya Tree Coral

Corals · 6 reviewed care topics · 2 linked sources

Killifish

Freshwater fish · 6 reviewed care topics · 2 linked sources

Knight Goby

Brackish fish · 6 reviewed care topics · 2 linked sources

Koi

Pond fish · 6 reviewed care topics · 2 linked sources

Kole Tang

Marine fish · 6 reviewed care topics · 2 linked sources

Kuhli Loach

Freshwater fish · 6 reviewed care topics · 2 linked sources

Lawnmower Blenny

Marine fish · 6 reviewed care topics · 2 linked sources

Leather Coral

Corals · 6 reviewed care topics · 2 linked sources

Lionfish

Marine fish · 6 reviewed care topics · 2 linked sources

Mandarin Dragonet

Marine fish · 6 reviewed care topics · 2 linked sources

Midas Blenny

Marine fish · 6 reviewed care topics · 2 linked sources

Molly

Freshwater fish · 6 reviewed care topics · 2 linked sources

Montipora Coral

Corals · 6 reviewed care topics · 2 linked sources

Mushroom Coral

Corals · 6 reviewed care topics · 2 linked sources

Mystery Snail

Freshwater invertebrates · 6 reviewed care topics · 2 linked sources

Neon Dottyback

Marine fish · 6 reviewed care topics · 2 linked sources

Neon Goby

Marine fish · 6 reviewed care topics · 2 linked sources

Neon Tetra

Freshwater fish · 6 reviewed care topics · 2 linked sources

Nerite Snail

Freshwater invertebrates · 6 reviewed care topics · 2 linked sources

Ocellaris Clownfish

Marine fish · 6 reviewed care topics · 2 linked sources

Orchid Dottyback

Marine fish · 6 reviewed care topics · 2 linked sources

Oscar

Freshwater fish · 6 reviewed care topics · 2 linked sources

Otocinclus Catfish

Freshwater fish · 6 reviewed care topics · 2 linked sources

Panda Corydoras

Freshwater fish · 6 reviewed care topics · 2 linked sources

Pea Puffer

Freshwater fish · 6 reviewed care topics · 2 linked sources

Pearl Danio

Freshwater fish · 6 reviewed care topics · 2 linked sources

Pearl Gourami

Freshwater fish · 6 reviewed care topics · 2 linked sources

Peppermint Shrimp

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Picasso Triggerfish

Marine fish · 6 reviewed care topics · 2 linked sources

Pistol Shrimp

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Platy

Freshwater fish · 6 reviewed care topics · 2 linked sources

Pulsing Xenia

Corals · 6 reviewed care topics · 2 linked sources

Purple Firefish

Marine fish · 6 reviewed care topics · 2 linked sources

Pygmy Corydoras

Freshwater fish · 6 reviewed care topics · 2 linked sources

Rabbit Snail

Freshwater invertebrates · 6 reviewed care topics · 2 linked sources

Red-Tailed Black Shark

Freshwater fish · 6 reviewed care topics · 2 linked sources

Royal Gramma

Marine fish · 6 reviewed care topics · 2 linked sources

Rummy-Nose Tetra

Freshwater fish · 6 reviewed care topics · 2 linked sources

Scarlet Reef Hermit Crab

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Scarlet Skunk Cleaner Shrimp

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Sea Cucumber

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Seahorse

Marine fish · 6 reviewed care topics · 2 linked sources

Silver Mono

Brackish fish · 6 reviewed care topics · 2 linked sources

Six-Line Wrasse

Marine fish · 6 reviewed care topics · 2 linked sources

Spotted Scat

Brackish fish · 6 reviewed care topics · 2 linked sources

Stylophora Coral

Corals · 6 reviewed care topics · 2 linked sources

Swordtail

Freshwater fish · 6 reviewed care topics · 2 linked sources

Tailspot Blenny

Marine fish · 6 reviewed care topics · 2 linked sources

Threadfin Rainbowfish

Freshwater fish · 6 reviewed care topics · 2 linked sources

Tiger Barb

Freshwater fish · 6 reviewed care topics · 2 linked sources

Toadstool Leather Coral

Corals · 6 reviewed care topics · 2 linked sources

Torch Coral

Corals · 6 reviewed care topics · 2 linked sources

Trochus Snail

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Turbo Snail

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Tuxedo Sea Urchin

Marine invertebrates · 6 reviewed care topics · 2 linked sources

Valentini Puffer

Marine fish · 6 reviewed care topics · 2 linked sources

Vampire Shrimp

Freshwater invertebrates · 6 reviewed care topics · 2 linked sources

White Cloud Mountain Minnow

Freshwater fish · 6 reviewed care topics · 2 linked sources

Yellow Tang

Marine fish · 6 reviewed care topics · 2 linked sources

Yellow Watchman Goby

Marine fish · 6 reviewed care topics · 2 linked sources

Zebra Danio

Freshwater fish · 6 reviewed care topics · 2 linked sources

Zoanthid Coral

Corals · 6 reviewed care topics · 3 linked sources

AN IMPORTANT LIMIT

Clear water is not automatically safe water.

Ammonia, nitrite, nitrate, pH and temperature must be measured, plus salinity in a marine aquarium. Reef keepers may also need alkalinity, calcium, magnesium and phosphate testing. Cycle the aquarium first and never rely on visual clarity alone.