Top 10 Easy Fish That Beginners Always LoveCertain aquarium fish are classified as “beginner fish” because they are easy to care for, very colorful, and won’t break the bank. However, even experienced fish keepers often turn to them because they are such crowd pleasers and don’t take as much attention as more high-maintenance species. After years of helping customers in our local fish store, these are our top 10 beginner fish we find ourselves recommending over and over again. 1. Black Neon Tetra (Hyphessobrycon herbertaxelrodi) Th...
Top 10 Stunning Nano Fish for Your Next Small Fish TankNano fish tanks are very popular for their beauty and compact size, but it can be challenging to find animals that are tiny enough to comfortably live in them. If you only have room for a 5- to 20-gallon aquarium, check out our top 10 small aquarium fish that are known for their vibrant colors, fun personalities, and unique appearances. 1. Celestial Pearl Danio Danio margaritatus Also known as the galaxy rasbora or CPD, this little fish has been extremely popular ever since its discovery in ...
How to Grow Aquarium Plants for ProfitCaring for live aquatic plants can begin with a bit of a learning curve, but once your planted aquarium starts flourishing and becomes overgrown, what do you do with all the extra vegetation? Is it possible to sell your extra trimmings as an extra source of income? As with most side hustles, you need to determine how much time, money, and effort you are willing to invest. Some people are hobbyists who just want a little fun money to help offset their aquarium keeping costs, while others are m...
The Fish Keeper’s Guide to pH, GH, and KHpH, GH, and KH are terms commonly used in water chemistry, but there is a lot of confusion about them in the freshwater aquarium hobby. What’s the difference between them, and how do they impact our fish? This practical guide for beginners explains what these parameters mean, when you should test for them, and how to raise or lower their levels if needed. pH (or Power of Hydrogen) pH measures the amount of hydrogen ions in liquids and tells you how acidic or basic is your water. On a scale of...
Staff Picks: 10 Perfect Gifts for the Aquarium Co-Op EnthusiastIf you’re searching for the perfect gift for the fish hobbyist in your life, look no further than this handy gift-buying guide from Aquarium Co-Op. To ring in the holiday season, we asked some of our friends and employees about their favorite Co-Op merch and essentials, and this is what we learned: Aquarium Co-Op Hoodie Jimmy's pick Whether it’s a run to the grocery store or to the backyard to check on his ricefish breeding ponds, Jimmy is probably wearing his Aquarium Co-Op hoodie. It’s...
Care Guide for Amazon Puffers – Freshwater Puffer for Community TanksPuffers are fascinating fish in the aquarium hobby because of their unusual, globelike shape and intelligent personalities, but many species grow incredibly large, require brackish water, or are too aggressive to be kept with other tankmates. Fortunately, the Amazon puffer is one of the few freshwater “community puffers” that only grows to 3 inches (7.6 cm) long and can live with other fish. Find out how to care for this amazing oddball and see if it’s the right pufferfish for you. What is th...
How to Make a Mini Outdoor Pond for Aquarium FishWhen the weather warms up and summer is upon us, everyone is itching to go outside. What better way to enjoy nature than to set up your first mini pond for breeding aquarium fish? If you live in a temperate climate that experiences distinct seasonal changes, then your mini pond fun usually lasts for 3 to 4 months in the summer (e.g., sometime between May and September in the United States). However, if you live in the subtropical zone that stays above 50°F or 10°C for most of the year (like F...
How to Cure Fungus on Aquarium FishIf your fish has a white- or gray-colored growth on its mouth or body (often with a fluffy texture like cotton), it could have a fungal infection. Fungal outbreaks are often caused by stressful or poor water quality conditions and can rapidly lead to secondary diseases, so it’s important to address the problem immediately. In this article, we cover several options for treating fungus, as well as how to stop it from coming back. When you see any symptoms of illness, the first thing we always r...
Care Guide for Pea Puffers – The Smallest Pufferfish in the WorldPea puffers are one of the coolest oddball species you can keep in a smaller-sized aquarium. They’re known for their helicopter-like maneuverability, independently moving eyes, and of course, ability to inflate like a tiny water balloon. In this practical care guide, we answer your most frequently asked questions about these amazing, little creatures. What Is a Pea Puffer? Carinotetraodon travancoricus – also known as the pea puffer, Indian dwarf puffer, Malabar puffer, and pygmy puffer – is ...
How to Culture Vinegar Eels for Fish FryAre you getting into fish breeding but need a way to feed teeny-tiny fry that are too small to eat regular fry food? Try vinegar eels! This live food is very easy to culture and is perfect for raising babies until they’re big enough to eat baby brine shrimp. What Are Vinegar Eels? Vinegar eels are harmless, white roundworms or nematodes that feed on the microorganisms commonly found in vinegar and fermented liquids. Growing up to 50 microns in diameter and 1 to 2 mm in length, they are one of...
Care Guide for Freshwater Angelfish – The Feisty Angel of the AquariumAngelfish are a very popular fish because of their long and majestic fins, spirited personalities, and ease of breeding. To learn more about this unique cichlid, we sat down with master breeder Dean, who has successfully kept them for the past 40 to 50 years and produces high-end strains to sell at the Aquarium Co-Op fish store. This article reveals his real-world experiences and answers to the most frequently asked questions about keeping freshwater angelfish. What are Angelfish? There can b...
Top 10 Tetras for Your Next Community AquariumTetras (also known as characids or characins from the Characidae family) are a staple of the freshwater aquarium hobby because many of them are colorful, peaceful schooling fish that go well in community tanks. South American tetras are more popular because of their small size and relatively inexpensive price, but they often prefer softer water and lower pH environments. African tetras, on the other hand, tend to be larger and more accepting of a wide range of water parameters, so they can be...
Care Guide for German Blue Rams – Housing, Breeding, and MoreBetween their iridescent colors and confident personality, German blue ram cichlids are one of the most striking freshwater fish in the aquarium hobby. When you see a healthy ram in breeding condition, almost every hue of the rainbow is displayed. In this article, we interviewed master breeder Dean to share his decades of experience in keeping, breeding, and raising this amazing dwarf cichlid. What are German Blue Rams? Mikrogeophagus ramirezi is a South American dwarf cichlid that goes by ma...
How to Care for Water Wisteria (Hygrophila difformis)Water wisteria (Hygrophila difformis) is a very popular aquarium plant in the hobby because of its lacy leaves, bright green color, and rapid growth. While its care requirements are easy, this species is very prone to melting and losing its leaves when you first purchase it (similar to melting Cryptocoryne plants). Find out our best tips and tricks for planting your new wisteria, getting past the melting phase, and propagating it to grow new plants. What is Water Wisteria? This aquatic stem p...
Care Guide for Dwarf Gouramis — Feisty Relative of Betta FishLooking for an eye-catching fish that isn’t a betta fish? The dwarf gourami is a very popular alternative because of its vibrant colors, bold personality, and hardiness. Despite the beginner-friendly reputation, it isn’t always the most peaceful community fish, so before you get one, let’s talk about its care requirements when it comes to housing, potential tank mates, food, and breeding. What are Dwarf Gouramis? Trichogaster lalius is a gourami with the classic oblong silhouette and two whis...
How to Ship Aquarium Fish in the MailIn a previous article, we talked about how to breed and sell aquarium fish to help offset the costs of your aquarium hobby. Selling to a local fish store is much easier because you can safely transport the animals yourself, but if you do not have any stores nearby, selling fish via online classified ads or auction websites like AquaBid is an alternative to consider. While Aquarium Co-Op no longer sells fish online, we have plenty of past experiences and best practices when it comes to shippin...
Top 10 Easy Fish That Beginners Always Love
Certain aquarium fish are classified as “beginner fish” because they are easy to care for, very colorful, and won’t break the bank. However, even experienced fish keepers often turn to them because they are such crowd pleasers and don’t take as much attention as more high-maintenance species. After years of helping customers in our local fish store, these are our top 10 beginner fish we find ourselves recommending over and over again. 1. Black Neon Tetra (Hyphessobrycon herbertaxelrodi) Th...
Top 10 Stunning Nano Fish for Your Next Small Fish Tank
Nano fish tanks are very popular for their beauty and compact size, but it can be challenging to find animals that are tiny enough to comfortably live in them. If you only have room for a 5- to 20-gallon aquarium, check out our top 10 small aquarium fish that are known for their vibrant colors, fun personalities, and unique appearances. 1. Celestial Pearl Danio Danio margaritatus Also known as the galaxy rasbora or CPD, this little fish has been extremely popular ever since its discovery in ...
How to Grow Aquarium Plants for Profit
Caring for live aquatic plants can begin with a bit of a learning curve, but once your planted aquarium starts flourishing and becomes overgrown, what do you do with all the extra vegetation? Is it possible to sell your extra trimmings as an extra source of income? As with most side hustles, you need to determine how much time, money, and effort you are willing to invest. Some people are hobbyists who just want a little fun money to help offset their aquarium keeping costs, while others are m...
The Fish Keeper’s Guide to pH, GH, and KH
pH, GH, and KH are terms commonly used in water chemistry, but there is a lot of confusion about them in the freshwater aquarium hobby. What’s the difference between them, and how do they impact our fish? This practical guide for beginners explains what these parameters mean, when you should test for them, and how to raise or lower their levels if needed. pH (or Power of Hydrogen) pH measures the amount of hydrogen ions in liquids and tells you how acidic or basic is your water. On a scale of...
Staff Picks: 10 Perfect Gifts for the Aquarium Co-Op Enthusiast
If you’re searching for the perfect gift for the fish hobbyist in your life, look no further than this handy gift-buying guide from Aquarium Co-Op. To ring in the holiday season, we asked some of our friends and employees about their favorite Co-Op merch and essentials, and this is what we learned: Aquarium Co-Op Hoodie Jimmy's pick Whether it’s a run to the grocery store or to the backyard to check on his ricefish breeding ponds, Jimmy is probably wearing his Aquarium Co-Op hoodie. It’s...
Care Guide for Amazon Puffers – Freshwater Puffer for Community Tanks
Puffers are fascinating fish in the aquarium hobby because of their unusual, globelike shape and intelligent personalities, but many species grow incredibly large, require brackish water, or are too aggressive to be kept with other tankmates. Fortunately, the Amazon puffer is one of the few freshwater “community puffers” that only grows to 3 inches (7.6 cm) long and can live with other fish. Find out how to care for this amazing oddball and see if it’s the right pufferfish for you. What is th...
How to Make a Mini Outdoor Pond for Aquarium Fish
When the weather warms up and summer is upon us, everyone is itching to go outside. What better way to enjoy nature than to set up your first mini pond for breeding aquarium fish? If you live in a temperate climate that experiences distinct seasonal changes, then your mini pond fun usually lasts for 3 to 4 months in the summer (e.g., sometime between May and September in the United States). However, if you live in the subtropical zone that stays above 50°F or 10°C for most of the year (like F...
How to Cure Fungus on Aquarium Fish
If your fish has a white- or gray-colored growth on its mouth or body (often with a fluffy texture like cotton), it could have a fungal infection. Fungal outbreaks are often caused by stressful or poor water quality conditions and can rapidly lead to secondary diseases, so it’s important to address the problem immediately. In this article, we cover several options for treating fungus, as well as how to stop it from coming back. When you see any symptoms of illness, the first thing we always r...
Care Guide for Pea Puffers – The Smallest Pufferfish in the World
Pea puffers are one of the coolest oddball species you can keep in a smaller-sized aquarium. They’re known for their helicopter-like maneuverability, independently moving eyes, and of course, ability to inflate like a tiny water balloon. In this practical care guide, we answer your most frequently asked questions about these amazing, little creatures. What Is a Pea Puffer? Carinotetraodon travancoricus – also known as the pea puffer, Indian dwarf puffer, Malabar puffer, and pygmy puffer – is ...
How to Culture Vinegar Eels for Fish Fry
Are you getting into fish breeding but need a way to feed teeny-tiny fry that are too small to eat regular fry food? Try vinegar eels! This live food is very easy to culture and is perfect for raising babies until they’re big enough to eat baby brine shrimp. What Are Vinegar Eels? Vinegar eels are harmless, white roundworms or nematodes that feed on the microorganisms commonly found in vinegar and fermented liquids. Growing up to 50 microns in diameter and 1 to 2 mm in length, they are one of...
Care Guide for Freshwater Angelfish – The Feisty Angel of the Aquarium
Angelfish are a very popular fish because of their long and majestic fins, spirited personalities, and ease of breeding. To learn more about this unique cichlid, we sat down with master breeder Dean, who has successfully kept them for the past 40 to 50 years and produces high-end strains to sell at the Aquarium Co-Op fish store. This article reveals his real-world experiences and answers to the most frequently asked questions about keeping freshwater angelfish. What are Angelfish? There can b...
Top 10 Tetras for Your Next Community Aquarium
Tetras (also known as characids or characins from the Characidae family) are a staple of the freshwater aquarium hobby because many of them are colorful, peaceful schooling fish that go well in community tanks. South American tetras are more popular because of their small size and relatively inexpensive price, but they often prefer softer water and lower pH environments. African tetras, on the other hand, tend to be larger and more accepting of a wide range of water parameters, so they can be...
Care Guide for German Blue Rams – Housing, Breeding, and More
Between their iridescent colors and confident personality, German blue ram cichlids are one of the most striking freshwater fish in the aquarium hobby. When you see a healthy ram in breeding condition, almost every hue of the rainbow is displayed. In this article, we interviewed master breeder Dean to share his decades of experience in keeping, breeding, and raising this amazing dwarf cichlid. What are German Blue Rams? Mikrogeophagus ramirezi is a South American dwarf cichlid that goes by ma...
How to Care for Water Wisteria (Hygrophila difformis)
Water wisteria (Hygrophila difformis) is a very popular aquarium plant in the hobby because of its lacy leaves, bright green color, and rapid growth. While its care requirements are easy, this species is very prone to melting and losing its leaves when you first purchase it (similar to melting Cryptocoryne plants). Find out our best tips and tricks for planting your new wisteria, getting past the melting phase, and propagating it to grow new plants. What is Water Wisteria? This aquatic stem p...
Care Guide for Dwarf Gouramis — Feisty Relative of Betta Fish
Looking for an eye-catching fish that isn’t a betta fish? The dwarf gourami is a very popular alternative because of its vibrant colors, bold personality, and hardiness. Despite the beginner-friendly reputation, it isn’t always the most peaceful community fish, so before you get one, let’s talk about its care requirements when it comes to housing, potential tank mates, food, and breeding. What are Dwarf Gouramis? Trichogaster lalius is a gourami with the classic oblong silhouette and two whis...
How to Ship Aquarium Fish in the Mail
In a previous article, we talked about how to breed and sell aquarium fish to help offset the costs of your aquarium hobby. Selling to a local fish store is much easier because you can safely transport the animals yourself, but if you do not have any stores nearby, selling fish via online classified ads or auction websites like AquaBid is an alternative to consider. While Aquarium Co-Op no longer sells fish online, we have plenty of past experiences and best practices when it comes to shippin...
