Hawkfish

Hawkfish are species of saltwater fish closely related to the lionfish. They are characterized by their large heads and somewhat elongated, thick bodies.

Gourami

Gourami are a relatively hardy species of freshwater aquarium fish and are thus suitable for most intermediate aquarists. Square shaped, compressed body.

Aquarium Biology 101: Anatomy of a Fish

We all know that a fish has gills and fins... but there's more to them than just a few basic parts. Get ready for our crash course in "Anatomy of a Fish."

Best Accessories for a Whimsical Fish Tank

Turn your tank into a wonderful, whimsical fish fantasy land! Here are the best accessories you should use for a whimsical fish tank.

Killifish

Killifish are a large family of freshwater fish comprising over a thousand different species. Most species are no more than an inch or two in size.

Grunts

Grunts are a family of saltwater fish made up of 150 different sub-species, some of which have been successfully introduced to the aquarium hobby.

Readers’ Picks: Top 12 Live Amano Shrimp Buys

Who knew that Amazon was a great place to buy live shrimp? From start to drop off, happy customers are reporting no casualties en route.

Top 5 Live Plants to Use in Brackish Aquariums

A mix of salt and freshwater, brackish aquariums present its own set of challenges. Here are a few plants that hold up in this type of tank.

Best Reef Aquarium Supplements

There are unique challenges to keeping a reef aquarium. To properly maintain this type of tank, you need the right reef aquarium supplements.

Best Aquarium Substrates for Planted Tanks

What's at the bottom of the best aquariums? The best substrates! Here's our list of the best aquarium substrates for planted tanks.

Planted Tank Trend: Meet the Bucephelandra

Get on the Bucephelandra bandwagon. The latest trend in aquariums, Buce can turn your tank into colorful oasis and the centerpiece of your home.

Product Review: AquaMaxx HOB Protein Skimmer

Let us clarify how important a quality protein skimmer is to your tank. We give the AquaMaxx HOB Protein Skimmer a spin in our aquarium.

Halfbeak

Halfbeak fish are a type of marine and brackish water fish belonging to the family Hemiramphidae. They are a little less colorful than some marine species.

Flounder

The flounder is also known as a flatfish; a fitting name because its body is laterally compressed and it lays on its side, burrowing into the substrate.

Parrotfish

Parrotfish are a marine fish with over 90 distinct species. They are characterized by their parrot-like beaks that are made of tightly compressed teeth.

Best Betta Tank Decorations

Do you want to complement your beautiful Betta fish? Why not fill your aquarium with the awe-inspiring Betta tank decorations?

Silver Dollar

Silver dollars are an extremely popular species of freshwater fish. They get their name from their almost round shaped bodies and silver coloring.

Best Foreground Plants to Use in a Planted Tank

Much thought and planning goes into a vibrant, practical planted tank. Learn how to properly arrange your plants and which ones are best for the foreground.

Best Aquarium Heaters for Tropical Fish

Just because you don't live in the tropics, it doesn't mean you can't have a tropical tank. Here are our picks for the best aquarium heaters for tropical fish.

What Are the Most Attractive Corals for a Reef Tank?

Broccoli, bubbles and... open brains? These are just a few coral types that will bloom in your aquarium and give your reef environment life.

Betta Splenden

Betta Splenden fish are one of the hardiest species of freshwater aquarium fish and are an incredibly popular mainstay among hobbyists.

Betta Leaf Hammock is the Perfect Fit for Any Tank

Researchers suggest keeping bettas happy by housing them in large, landscaped tanks. This hammock is a great addition to any enclosure.

Exploring The Riparium: A New Kind of Planted Tank

Also known as a Riverbank Aquarium, the Riparium is growing in popularity. Let's go over the basics of this new planted tank trend.

Saltwater Shopping List For Beginners

Starting up a saltwater tank is a lot simpler when you have a must-have list of items. Use this list as a start point for your new saltwater aquarium.

Buying Guide: Best Betta Fish Tanks

Betta fish tanks are designed to provide optimal comfort to a fish of their size and make sure your vibrantly colored pet thrives in its new environment.

Best Cannister Filters for Large Aquariums

To ensure your fish are happy and healthy, water quality needs to be optimal. The best way to do that is with a high-quality canister filter.

Basslet

Basslets are a small family of marine fish. Most species of basslet rarely exceed 4 inches in length and are known for their vibrant colorations.

Top 3 Substrates to Use in Planted Aquariums

The key to the perfect planted tank is to get the balance between fish and plant needs just right. The solution is finding the ideal type of substrate.

Coral Reefing: Choosing Soft or Hard Coral

When it comes to making a choice between soft or hard, it's not just a question for tacos. For coal reefing, are you going to go with soft or hard coral?

Glass Fish

The glass fish is a fascinating species of aquarium fish. Its most astounding feature is its transparent body which reveals its bones and internal organs.

Barbs

Barbs are a large family of freshwater fish that are a popular choice in the aquarium hobby. Different species of barbs come in a dazzling array of colors.

5 Common Mistakes Made by Reef Keepers

When you're starting out, the smartest thing to do is learn from others' mistakes. Minimize your reef keeping boo-boos and take some advice from the pros.

Harlequin Tuskfish

Harlequin tuskfish are a colorful species of wrasse. They are characterized by their sharp blue, tusk-like teeth and distinctive body colorations.

Growing and Propagating Your Own Coral

Feel like fragging? If you want to propagate your own coral, you sure do! This cost-effective practice lets you grow your own coral.

Confessions of a Tank Addict: YouTube Fish Fanatic Rachel O’Leary

The first step is admitting you have a problem. The second step is to set up a YouTube channel and record your tank obsession - just like Rachel O'Leary!

Tetra

Tetra are a species of tropical fish extremely popular in the aquarium trade. There are over 150 different species of tetras, most have small bodies.

Dartfish

Dartfish are a family of small, colorful saltwater fish. They are similar in appearance to gobies and are characterized by their long, eel-like bodies.

Fishy Secrets Revealed: The Pros’ Most Embarrassing Stories

We all have those forehead-slapping moments when we make a stupid mistake. Hey, not to worry - even the most seasoned of fish pros have made a few missteps.

Jawfish

Jawfish are species of saltwater fish very similar in appearance to blennies. They are characterized by their comparatively larger mouths and heads.

Best Aquarium Gravel for Freshwater Tanks

What's at the bottom of your aquarium? If you're looking for substrate, check out our picks for the best aquarium gravel for freshwater tanks.

Lionfish

Lionfish are a species of fish belonging to the scorpionfish family. They are known for their bright colorations, flowing fins and venomous tentacles.

Guppy

One of the most commonly available species of freshwater aquarium fish, the guppy is a long favorite amongst aquarium enthusiasts worldwide.

Why You Need The API Master Test Kit

Here's a test you don't have to study for. The API Master Test Kit has everything you need to maintain and monitor aquarium conditions.

Mollies – Freshwater

Mollies are a freshwater fish commonly known as the Molly. They are a hardy species of fish that adapts well to a variety of different water conditions.

Saltwater Sharks

Saltwater sharks are some of the most majestic and most dangerous species kept in the aquarium hobby. They are only recommended for advanced hobbyists.

Triggerfish

Triggerfish are a fish comprised of roughly 40 distinct species. They are characterized by their laterally compressed bodies and comparatively large heads.

Top 5 Invertebrates to Hire For Your Freshwater Cleanup Crew

Taking care of your aquarium is hard work - you need to bring in some extra muscle! Here are 5 invertebrates that you want on your freshwater cleanup crew.

What Are the Most Difficult Aquatic Plants to Grow?

Some plants take a lot more work than others. If you're looking for a challenge, these are the most difficult aquatic plants to grow.

Our Guide to the Best Nano Tanks

Short on space, but love fish? A nano tank may just fill that empty space in your home. Here are the best nano tanks we've found.

Tips and Tricks for Stocking a Community Tank

You've decided to stock your own community tank. But what fish will get along together in your Zen aquarium? Here's what you need to know.

Best Aquarium Kits for Beginners

You want to get an aquarium, but you don't know where to start. Not to worry - we've compiled a list of the best aquarium kits for beginners.

Best Aquarium Power Filters

When you're stocking your aquarium, don't forget about the right filtration for your tank. Here are our picks for the best aquarium power filters.

Blennies

Blennies are a species of marine fish made up of 6 distinct families. They are characteristically small in size and are similar to gobies in appearance.

Best Aquarium Hoods

Don't just think about the design of your tank - you also have to remember the practical elements. With that in mind, here are our picks for the best aquarium hoods.

Coral Reef-Safe Fish Species for Saltwater Tanks

Pairing the right fish with the right coral makes for a vibrant and healthy aquarium. Here's what saltwater fish will enjoy your coral reef tank.

How to Use Floating Plants in Your Planted Tank

Floating plants help to create a tranquil vibe in your aquarium. If you're new to this kind of plant, here are a few pointers to keep in mind.

Best 10 Gallon Fish Tanks

Getting a 10 gallon fish tank is an excellent starting point as it is not overwhelmingly big or too challenging. Take a look at he best 10 gallon aquariums!

4 Popular Cryptocoryne Species for Your Planted Tank

Lush and colorful, the Cryptocoryne species is a popular pick for planted tank enthusiasts. Why not add these vibrant aquatic plants to your tank?

Seahorses

Seahorses are characterized by their equine appearance. Its upper body is shaped like the head of a horse and its lower body ends in an elongated tail.

Cichlids: One Of The World’s Most Fascinating Freshwater Fish Specie

Colorful and plentiful, cichlids are a popular freshwater aquarium fish. If you're looking to add them to your tank, here are a few basics to keep in mind.