Fish Blog

If you’re looking to swim with the big fish… or the small fish… or anything in between, our in-depth Fish Blog section covers everything an avid aquarist needs to know.

Covering all types of aquarium tanks, to cool and interesting ideas for your next fishy endeavor, PetGuide.com’s Fish Blog is the perfect spot for experienced and beginner fish enthusiasts alike. We cover the various aspects of fish keeping as a hobby – from simple planted tanks to complex marine environments, as well as aquarium fish and their compatibility with other species. Dive right into the fascinating world of aquariums!

If you are in need for some tips and ideas on decorating your fish tank with beautiful plants, make sure to hop on over to our Aquatic Plants section. In case you have a saltwater tank and want to create a unique environment for its inhabitants, Coral Reefing is definitely an option worth looking into. Reef tanks are not only great for the fish but a magnificent centerpiece for your home as well! Depending on the type of water in your tank, you will also find invaluable advice and how-to guides in our Freshwater and Saltwater blog chapters, or useful reviews of aquarium equipment in our Fish Products section of the blog.

Wondering about adding a new creature into your aquarium? Read up on our aquarium fish species recommendations, or head on over to our Invertebrates blog, to find out how to chose, introduce and care for various marine critters, including species such as crabs, clams, starfish, and much more.

Create a stunning miniature ecosystem in your aquarium. Petguide.com’s Fish blog has all the resources you’ll need to create, decorate and maintain a gorgeous fish tank, as well as guides on choosing and caring for aquarium fish and other aquatic creatures that will inhabit it!

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.

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.

Best Aquarium Supplies for Biological Filtration

Balance is the key to a healthy aquarium and filtration plays a major role. That's why you need know about the best aquarium supplies for biological filtration.

Paludariums Have Room For More Than Just Fish

Who says an aquarium is just for fish? A paludarium can house a host of animals and plants that takes on the feel of your very own exotic wetland!

Taking a Closer Look at Oscars

One of the most popular aquarium fish species is the Oscar. Brilliantly colored and quite smart, there's a lot you didn't know about these tough fish.

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.

5 Plants Picks for Your Brackish Aquarium

It's not saltwater, it's not freshwater - brackish aquariums offer a bit of both! But finding the right plants for this type of tank can prove to be tricky.

Best Color-Enhancing Fish Food

The most focal part of your tank is your fish, so you want them looking their best. Keep them vibrant with the best color-enhancing fish food.

Best Aquarium Lights

Lights� cameras� action! Put a spotlight on your tank with the right lighting. Here are our picks for the best aquarium lights.

Finding Dory: The True Tail Behind the Regal Tang Fish

Thanks to Hollywood, the new must-have fish to have is the Regal Tang. But this isn't a fish for the faint hearted - are you up to the challenge?

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.

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.

The Best Aquarium Thermometers

Keeping your tank water at the perfect temperature is extremely important. That's why you need the best aquarium thermometer for your tank.

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.

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!

Fish Flushing: Why Toilet Funerals Need To Go

We have all gathered around the toilet to say our farewells to fish that have gone belly up. But this practice needs to stop for a variety of reasons.

Get to Know the Bristlenose Pleco

A lesser known variety of the species, the Bristlenose Pleco has a lot going for it. Easy to care for, this fish makes a great addition to home aquariums.

Expand Your Saltwater Tank With a Refugium

Want tag on a new addition to your saltwater tank? With a refugium, you can add greater water capacity to your main tank for a host of benefits.

Pros and Cons of Feeding Your Fish Live Food

What are you feeding your fish for dinner? If you're planning on feeding your fish live food, here's what you need to know about this type of diet.

Best Fish Food for Aquarium Fish

What do you plan to feed your fish? If you're just starting out with a tank, you'll want to choose the best fish food for aquarium fish.

Watts Going On With Your Aquarium Lighting?

Aquarium lighting is more than just watts per gallon. When you're setting up lighting for your tank, be sure to keep these important factors in mind.

Best Medications for Treating Aquarium Fish Diseases

Just like any pet, fish can get sick too. But how can you fight illness in your tank? Here's our list of the best medications for treating aquarium fish diseases.

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.

Biotope Tanks: What Are They and How Do You Cultivate One?

Before you buy, have you narrowed down your choice of fish tank? If you're looking into freshwater, the Biotope tank may be just what you're looking for.

4 Annoying Pests Found in Your Freshwater Aquarium

Even the smallest pests can mess up the most pristine aquarium. Here are four common (and annoying) pests that could cause problems in your freshwater tank.

Aquarium Spotlight: PPG Aquarium in Pittsburgh, PA

Education can be lots of fun - just don't tell the kids that! If you're looking for a family outing in Pittsburgh, PA, drop by the PPG Aquarium.

Best Air Bubbler Aquarium Decorations

Turn your tank into a conversation piece with the right decorations. Here are our picks for the best air bubbler aquarium decorations.

What You Need to Know About Feeding Your Fish

A healthy fish aquarium starts with the right nutrition. There are many types of fish food on the market – which one should you choose? When it comes t…

How to Properly Acclimate New Fish in the Aquarium

When it comes to aquariums, how you add new fish to your tank is important to their safety and well being. Tips for acclimatizing fish to your aquarium.

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.

Stay Tuned For Aquarium’s Got Talent

What amazing talent lurks in your tank? Take a front row seat - you won't believe the specular show that's going on in your aquarium!

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.

6 Easy Hacks to Cure Fish Boredom

Just like any other pet, fish can become bored, too. And while they won't chew up your shoes, keeping them occupied will ensure they live a healthier life.

Putting Your Best Fin Forward at Aquarium Fish Shows

Have you ever been to a fish show? All aquarium hobbyists will want to attend one of these events to see the brightest and best fish strut their stuff!

Radiant Reef: A Rainbow of Hard Coral

An underwater, eye-dazzling view! Available in all the colors of the rainbow, hard corals can turn your tank into a brilliant spectrum of wonder.

Hop to It: My Introduction to African Dwarf Frogs

When your child's school sends her home with a new amphibian friend, you've got to adapt your aquarium to suit the little jumper's needs - ASAP!

Best Artificial Aquarium Plants

Keeping a tank with live plants can be quite a challenge. If you want the look of a planted tank without the hassle, think about adding artificial aquarium plants.

Tips for Converting From a Fish-Only to a Planted Tank

You've decided to make a change from a fish-only to a planted tank. When you're ready to add live plants to the mix, here are some tips you should follow.

Which is the Best Choice: Canister Vs Hang-On Filters?

One of the most important pieces of equipment you'll need for your aquarium is a filter. The canister or hang-on filter - which one is best for your needs?

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.

How to Tell If Aquarium Hobby Right for You

Keeping an aquarium is fun and rewarding - it also takes work. Do you have what it takes to dive into the aquarium hobby?

The Lowdown on Fish Laws

Are you guilty of breaking a fish law? Perhaps you don't even realize that what you've done is illegal. What you don't know may land you in hot water.

Setting a Schedule for Routine Tank Maintenance

Aquariums need to be maintained regularly - it's essential to keeping your fish healthy and your tank looking its best.

Readers’ Picks: The Best Fish Products on Amazon, According to You

This list isn't at all fishy. We went through the most popular fish-related items bought by our readers on Amazon last year to bring you this rundown.

Our Guide to the Best Aquarium Sea Salt

Are you interested in setting up a salt water tank? Then you'll need our guide to the best aquarium sea salt.�

Are You Feelin’ Crabby?

Are you a tank owner who's always wanted to bring home a crab? If you're ready to jump into the world of crabs, take a pinch of our tested advice.

Best Freeze-Dried Fish Foods

We're going to explore the subject of freeze-dried fish food in greater depth. You'll learn how to choose freeze-dried fish food, how best to feed it, and our top picks.

Best Supplies for a Betta Fish Tank

Known for their bright colors and long, flowing tails, betta fish are a great option if you're looking for a way to break into the aquarium hobby.

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.

Best Aquarium Filters

Go with the flow and keep your tank sparkling clean. Choose from our list of the best aquarium filters to ensure your tank is properly maintained.

Top 3 Marine Invertebrates for Beginners

You're getting creative with your tank, and you're thinking about adding invertebrates to the mix. If you're a beginner, start with these marine inverts.

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.

Why I Think Aquarium Rock Collecting Rocks!

Are you into hard rock? Not the music... the kind you put in your aquarium! Here's what you need to know before adding rocks to your tank.

The Benefits of Hermit Crabs in Your Aquarium

The hermit crab isn't just a pretty shell - this invertebrate likes to clean up after itself. Here's why you should let a hermit crab move into your tank.

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.

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.

What’s Wrong With My Aquarium Plants?

Your aquarium plants aren't thriving; in fact, it looks like they're going to go belly up! Here are some common problems you'll see with aquarium plants.

Understanding the Basics of Freshwater Aquarium Lighting

The right lights make all the difference to your freshwater aquarium. Offering much more than just illumination, aquarium lighting helps feed your plants.

Best Aquarium Maintenance Supplies

Your tank is perfect - but how do you keep it that way? You need the right aquarium maintenance supplies to keep it looking its best.

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."