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!

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.

Oscars and Aquarium Plants: Can You Have Both?

Some fish and aquarium plants don't go together. If you're thinking of adding Oscars to your planted tank, keep these important facts in mind.

Daily and Weekly Coral Reef Tank Maintenance Schedule

You've set up your coral reef tank and it looks spectacular. But don't rest on your laurels - daily and weekly maintenance to make sure it stays that way.

4 Most Common Mistakes New Aquarium Hobbyists Make

Hey, we all make mistakes. And when it comes to aquariums, there are a few common ones that new hobbyists are bound to make.

Best Aquarium Testing Supplies

Depending on what kind of fish you're stocking your tank with, you're going to need to test the water to make sure it's just right. Here are the best aquarium testing supplies to help you out.�

Go Green With the Emerald Crab

Crabs are a cool addition to an aquarium. And the Emerald Crab does more than add color - these invertebrates clean up after themselves.

6 Most Common Freshwater Fish Diseases

Just like any other pet, fish are susceptible to illness. If you have a tank, be on the lookout for these six common freshwater diseases.

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.

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!

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.

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.

Multiple Tank Syndrome: It’s Time for a Fish Addict Intervention

Speaking out on her addition to fish and aquariums, Summer Davis suffers from multiple tank syndrome (MTS), and she doesn't care who knows it.

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.

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.

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.

4 Best Types of Lighting Systems for Planted Aquariums

Got light? The right lights on your aquarium can not only make your tank shine, but it's also necessary component for plants to thrive.

How to Anchor Live Plants to Driftwood for a Natural Décor Scheme

Driftwood adds a distinct look to an aquarium. To make sure you pull off this style, follow our tips for properly using driftwood as a live plant anchor.

Top 5 Fast-Growing Aquarium Plants for Planted Tanks

If you're impatient for growth, you'll want aquarium plants that shoot up quickly. Take a look at these fast-growing aquarium plants for your planted 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 Automatic Aquarium Feeders

We've put together some tips for choosing and using an automatic aquarium feeder and our top 10 picks for the best automatic aquarium feeders.

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.

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 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.

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.

Aquarium LED Review: Finnex Planted+ 24/7

For perfect lighting, no matter what time of day, the Finnex Planted+ 24/7 LED fixture offers a hands-free simulated sunrise and sunset effect.

Best Fish Food for Algae Eaters

Finding the perfect combination of aquarium inhabitants is an art. You want to find species that are compatible with each other in terms of size and color, but you also have to think about aggression and diet as well. Once you’ve established the ideal balance, it can be challenging to add a new inhabitant to the tank. If you’re struggling to control problem algae, however, adding a new species could be your best option. Bristlenose Plecostomus, oto cats, and other algae eaters are a natural and long-term solution for problem algae, but they require care of their own.

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.

How to Handle Stress in Aquarium Fish

It may seem like they're care-free, but aquarium fish can suffer from stress. Here's what you need to look for and what to do if it happens to your fish.

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.

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.

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.

Choosing the Right Substrate for Your Aquarium

Let's get to the bottom of aquarium substrate! Depending on what kind of tank you set up, you need to choose the right substrate for it.

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.

Feeding Techniques for Your Coral Reef Tank

With a coral reef tank, you need to think about the eating habits of all the inhabitants. Here are some tips to ensure they all get their fair share.

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.

7 Common Types of Algae Found in Freshwater Aquariums

It's not easy being green... or brown... or red. How many different types of freshwater algae are you familiar with and how to you control it?

Fish RX: Hikari PraziPro Fights Parasite Infestations

What do you do when your fish get sick? Before or after parasites invade your aquarium, medicate your fish with Hikari PraziPro.

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.

Suck It Up: Python No Spill Clean and Fill Aquarium Maintenance System

Sucking up dirty water from your tank and filling it up with clean H2O can be time consuming. Let the Python Aquarium Maintenance System do the job for you!

Fish Ponds Let You Take Your Hobby Outside

Revitalize your outdoor living space with a container pond or a small water feature. Easy and inexpensive, your pond will add new life your landscape.

Why You’ll Want to Add Mystery Snails to Your Aquarium

Mystery snails are a welcome addition to an aquarium. Colorful and community oriented, these crustaceans will clean up after themselves and tank mates.

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.

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.

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 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.

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.

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.

Aquarium Heating: Submersible Vs. Hang-on Heaters

Unless your aquarium only houses goldfish, you're going to need a tank heater. But should you go with a submersible or a hang-on heater?

Get to Work on an Office Aquarium

Bring life into your office with a fish tank. A growing trend in the workplace, aquariums add color, energy, and stress release to a busy day.

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.

Heating Things Up With Eheim Jager Heaters

Not too cold, not too hot... you want to keep the temperature just right. Buying the right heater sets the right climate for the health of your fish.

Best Aquarium Kits Under 10 Gallons

Setting up a home aquarium can be a lot of fun, but it can also be challenging. You’re not just creating a visual element to add to your home décor – you’re actually creating a captive aquatic environment that needs to support life. If you’re not quite sure where to start as a budding aquarium enthusiast, you might consider easing yourself into the hobby by purchasing a small aquarium kit to start.

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