Freshwater Aquariums: Most Popular Articles
Sizes and filled weights for standard aquariums.
Virtually everyone experiences it at one time or another. What causes cloudy water, and how do you clear it up? These answers will clear things up for you.
How to diagnose and treat Swim Bladder Disorder
Sooner or later everyone battles algae in their aquarium. This algae reference explains the types of the algae types seen in aquariums, their causes, and cures.
A library of freshwater aquarium fish profiles that include; photos, habitat, general care, feeding, and breeding.
Cleaning even a very dirty aquarium isn't all that hard when you know what to do. Here are the tools you'll need, and instructions for making your tank look beautiful again.
As long as aquariums have been round, the battle with snails has been waged. Fortunately, it's a battle you can win. Here's how.
The significance of nitrates in the aquarium are arguably less understood by fishkeepers than the effect of ammonia and nitrites. Although nitrates are not directly lethal in the way ammonia or nitrites are, over time high levels of nitrate have a negative effect on fish, plants and the aquarium in general.
Call it the nitrogen cycle, break-in cycle, start-up cycle, or new aquarium cycle, it’s all the same thing. Knowing how it works will help you keep a healthy environment for your fish.
Many new aquarium owners make fatal mistakes because they don't know the pitfalls to avoid. Here are top mistakes made when starting a new aquarium, and how to avoid them.
When choosing fish for a community tank, one of the factors that should be considered is the optimum water temperature for the species you are choosing. Fish that require warm water should not be kept with fish requiring cooler water. Here are some options for coldwater fish.
Dropsy is not actually a disease, but rather a symptom of a number of diseases. Here is how to diagnose and treat various disorders that cause dropsy in aquarium fish.
Aquarium algae is one of the most frustrating problems to deal with. Here is how to identify and cope with brown algae.
A detailed profile of the Zebra Danio- Danio rerio, including habitat, care, feeding, and breeding.
A detailed profile of the Siamese Fighting Fish, Betta Splendens, including habitat, care, feeding, and breeding.
How many fish can your tank safely hold? Learn the pros and cons of different methods for calculating how many fish your aquarium will hold.
One of the most common mistakes made by fishowners is overfeeding fish. Just how much and how often should you feed your fish?
Find the right size of heater for your aquarium with this handy heater size guide.
Ammonia poisoning can be deadly, but can be treated if caught early. Learn how to treat ammonia poisoning, and what you can do to avoid it in the future.
Ever wondered how long your fish will live? Lifespans of aquarium fish vary considerably depending on the species, as well as the care they are given. This list provides a yardstick of what to expect for your fish.
Next time you have sick fish, the remedy might not be farther away than your kitchen table. Ordinary salt is a useful remedy for the prevention and treatment of several freshwater fish diseases. However, it can also be harmful if used improperly. Here are simple instructions for when and how to use salt in your freshwater aquarium.
Fin Rot is a bacterial disease that occurs quite frequently in aquarium fish. Caused by environmental factors, it is a highly preventable disease. Learn how to diagnose and treat fin rot, and how to prevent it in the first place.
What is the best aquarium water temperature, and why does it matter?
Water changes are the cornerstone of a healthy aquarium. Like it or not, they need to be done. Here's why you should perform them, and tips for making it an easier task.
Bettas are so beautiful, but sadly they don't seem to live very long. Is it because of those little jars they are kept in? Just how long is a Betta supposed to live?
White residue on aquarium glass and equipment is an annoying fact of life. Here's an inexpensive and simple way to remove it.
Widely available, the man-made hybrid known as the Blood Parrot has been widely debated. Regardless of what side of the fence you are on, they are well established in the aquarium trade and not likely to disappear anytime soon. Here is how to care for Blood Parrots.
Your aquarium is set up and you're ready to add fish. Learn about good first fish, and why some common favorites aren't best for a brand new tank.
The White Cloud Mountain Minnow, Tanichthys alboneubes, is a popular, easy to care for, freshwater aquarium fish. This article details care, habitat, feeding, and breeding of this attractive fish.
Pop-eye, or Exophthalmia, is not a disease itself, but it is a sign that something is wrong. Here's what may be going on when a fish presents with a pop-eye.
What is pH and what is normal in an aquarium? Should you be concerned about pH? Knowing the basics will help avoid disasters that can prove fatal for your fish.
When trying to breed fish, obtaining a pair is critical. Unfortunately, determining the sex of fish isn't always an easy task. Here are some tips for sexing various species of fish.
The pros and cons of using activated carbon in freshwater aquariums.
Has your aquarium water ever looked yellow or brownish? Here's what may be causing it, and how to fix it.
Mini aquariums are hugely popular. Are they the perfect addition to your college dorm, or classroom? Do your homework before buying one, and you'll have a greater chance for success.
Aquarium lights usually don't come with a tag saying when to turn them on and off. So, how long should aquarium lights be left on?
A comprehensive library of aquarium fish photos and profiles, sorted by common name.
How to recognize and correct low oxygen conditions in a freshwater aquarium.
The level the fish prefer to swim in is often missed when setting up a community aquarium. If you select fish that prefer different levels, the aquarium be more attractive and your fish will not have to compete with each other for space.
Fish from the Gourami family are among some of the most hardy and popular aquarium fish. Although relatively easy to care for, it's wise to learn about their basic needs if you are planning to keep one in your aquarium.
Which plant is better for your freshwater aquarium, real or artificial ones? Here are the pros and cons of real versus artificial aquarium plants.
Cloudy water can be both frustrating and baffling. Here are ways to deal with cloudy water in a new aquarium.
Aquarium water testing is a critical part of fishkeeping, yet is universally overlooked. Often the fish owner is unaware that testing their aquarium water is necessary, or what to test for. Learn the basics of aquarium water testing, and when you should test your water.
Algae is one of the most frustrating problems to deal with. Here is how to identify and cope with green water
The presence of tiny white worms can be very distressing to any aquarium owner. Although they are not harmful to the fish, they are a sign of problems in the aquarium.
Pleistophora hyphessobryconis, or Neon Tetra Disease, is incurable. Quick diagnosis can save healthy fish from falling victim to this killer disease.
Why fish owners should never flush fish down the toilet
Biological and mechanical filtration is critical for maintaining a healthy environment in your aquarium. The aquarium, filter type, size, and media you select will depend on many factors. Don't let all the choices overwhelm you. Before you buy an aquarium filter, arm yourself with the basics about the type of aquarium filter you need.
Determining the sex of your freshwater fish isn't always straightforward. These tips will help you determine if your Gourami is a male or female.
The care and feeding of aquarium fish is a big concern to fish owners planning a vacation. This care and feeding checklist assures that your freshwater aquarium fish will be well provided for while you are away.
Everyone has basic questions about how much and what size is needed when setting up an aquarium. Here is a collection of information about the size of tanks, heaters, filters, volume of substrate, as well as conversion charts.
Bettas weren't named Siamese Fighting Fish because they along with each other. Is it ever possible to keep more than one in the same tank?
Columnaris is often misdiagnosed, due to sometimes having a fungal appearance. Unfortunately fungal treatments are not effective against this bacterial disease Here is how to diagnose and treat Columnaris.
It's a common, but not completely accurate story, that water changes will kill your aquarium fish. How did the story start, and is there any truth in it? Like many misconceptions, there is a kernel of truth behind it.
Bettas are usually displayed in small unheated bowls at the pet shop, but is that the proper environment for them? Here are tips for the best Betta habitat.
Aquariums are one of the most popular hobbies in the world. Who can resist the lure of a beautiful tank full of colorful fish? Before jumping in with both feet, here are a few things you should consider.
How to diagnose and treat Nitrite Poisoning
Canister filters are excellent for medium to large size tanks. These are my top choices for canister filters.
Nutrition is important for fish health. This comprehensive fish feeding resource of articles and product reviews about foods will help you keep your fish in top health.
Choosing the proper substrate for your planted aquarium can make the difference between success and failure. Plant grower, Don Matakis offers his advice on choosing substrates.
A profile of the Yo Yo Loach (Botia lohachata), including habitat, care, feeding, and breeding.
A profile of the Dwarf Gourami (Colisa lalia), including habitat, care, feeding, and breeding.
Elevated water temperatures can be dangerous or even lethal to fish if they remain high for a period of time. Here are the steps to take if you have a heat problem.
Cyanobacteria is a common, but difficult to manage, aquarium problem. Here is how to identify and cope with Cyanobacteria, also known as Blue-Green Algae or Slime Algae.
Do you need to know if your fish is an omnivore, herbivore, or carnivore? Believe it or not, it's wise to know what dietary category your fish fall into. Otherwise you may not be feeding them the foods they need to stay healthy.
Phosphates are one of the primary causes of algae overgrowth in the aquarium. Here's what you need to know about phosphates in the aquarium.
How to diagnose and treat the aquarium fish disease Ichthyophthirius multifilis - Ich
Learning scientific names of fish can be daunting, so we all tend to use common names. However, if you wish to do research on your fish, knowing the scientific name is invaluable. Here is a handy list of common fish names that begin with the letter D, cross referenced to their scientific names.
Broach the subject of using bleach to clean an aquarium, and a heated discussion about safety is sure to follow. So is it safe or not? Read on for the answer.
Small fish bowls require frequent cleaning. Learn how to clean a fish bowl quickly and safely.
Choosing fish that prefer different levels within the tank results in a more attractive aquarium and assures that your fish will not have to compete for space. Here is a list, split by preferred level, of one hundred fish that can be part of a community tank. Keep in mind that water conditions (pH, temp, hardness), size, and compatibility must also be considered when choosing fish for your community tank.
Your aquarium water temperature is an important factor in the comfort and well being of your fish. This aquarium heater guide covers everything you need to know about heaters, from heater types to heater sizes to heater placement.
Looking for a fun livebearing fish? The Mickey Mouse Platy, Xiphophorus maculatus, makes a great addition to a community aquarium. Here's more about habitat, care, feeding, and breeding.
When fish are sick, they can't tell you what is wrong. If your fish appear to be sick, this resource will help you diagnose and treat them. You'll also find tips to prevent future illness.
One of the most popular Barb species is the colorful Rosy Barb. Learn more about then, including preferred tank mates, habitat, feeding and breeding.
Aquarium owners often are perplexed when it comes to filling their canister filter. This article helps makes sense of the recommended filter media order.
How you acclimate newly acquired aquarium fish can make all the difference in their health and well being. Here is how to accliimate aquarium fish safely.
A profile of the Weather Loach, Misgurnus angullicaudatus, including habitat, care, feeding, and breeding.
A Profile of The Figure Eight Puffer, Tetraodon biocellatus, including habitat, care, feeding, and breeding.
A profile of the Tiger Barb, Barbus tetrazona, including habitat, care, feeding, and breeding.
A profile of the Kribensis (Pelvicachromis pulcher), including habitat, care, feeding, and breeding.
Profiles and photos of Betta and Gouramis.
Description: Every aquarium owner has had an occasion when they looked at their tank and realize that they couldn't locate all their fish. Perhaps the fish eventually reappeared, but other times the fish is never found. What causes fish to disappear, and in some cases, never be found?
Bettas are often kept in small bowls, or worse yet, flower vases. Learn why a Betta should not be kept in a flower vase.
Although it may seem simple to determine Betta gender, in some cases it is not as obvious as you may think. Here are ways to accurately determine Betta sex.
A profile of the aquarium fish known as the Blue Gourami (Trichogaster trichopterus), including habitat, care, feeding, and breeding.
Sponge filters are overlooked by my aquarium owners, even though they are ideal for certain situations. Learn the pros and cons of sponge filters, and what they are best used for.
One of the most recognizable and popular loaches, the Coolie Loach - Pangio kuhlii, is also an easy to care for fish. Here's how to keep them happy and healthy.
Ever notice an ‘oil slick’ in your tank? If you did, you were probably scratching your head wondering where it came from, if it’s harmful and how to get rid of it. Here's the answers to those questions.
Foam floating on your aquarium water is nothing short of disturbing. Where did it come from? Is it dangerous? What can be done to get rid of it? This article will answer all those questions about foamy aquarium water.
Plants are an important part of any aquarium decor, but what does an owner do when they get dirty? Learn how to safely clean live or artificial plants.
How to diagnose and treat nitrate poisoning.
A profile of the Harlequin (Trigonostigma heteromorpha), including habitat, care, feeding, and breeding.
Is having gravel, or any other kind of substrate, necessary in an aquarium? Generally the answer is yes, but there are occasions when no substrate at all is best. This FAQ explains why you need, or don't need, substrate.
How to care for the Pearl Danio, Danio albolineatus, including habitat, care, feeding, and breeding.
What to look for when selecting a filter for your aquarium, from your About.com Guide
The Freshwater Forums is a thriving community that's a great resource of information and ideas. Here is how to quickly reach the forum, and find what you are looking for.
Algae is one of the most frustrating problems to deal with. Here is how to identify and cope with Slime Algae.
Tales of piranhas devouring hapless humans have circulated for many years. Are they a serious threat to people, or is it an urban legend?
A profile of the Bloodfin Tetra (Aphyocharax anisitsi), including habitat, care, feeding, and breeding.
A profile of the Upside Down Catfish - Synodontis nigriventris, including habitat, care, feeding, and breeding.
Fish that hide all the time are a baffling and frustrating problem for the owner. Here are reasons why they hide how to coax your fish out into the open where you can enjoy him.
A Q & A about replacing aquarium gravel: aquarium gravel gravel bed gallon aquarium bacterial colonies beneficial bacteria
A profile of the Gold Barb, Puntius semifasciolatus, including habitat, care, feeding, and breeding.
Do you have a stressful life, high blood pressure, insomnia? Keeping an aquarium may be good therapy for you. Studies going back as far as the late 80’s have shown that gazing at aquarium fish reduces stress and subsequently lowers blood pressure.
Hydra is a soft-bodied freshwater polyp that sometimes is sometimes accidentally introduced to freshwater aquariums. Here's how to get rid of them.
The benefits of feeding your freshwater fish something more than flakes.
Here is a handy list of over a thousand common fish names cross referenced to their scientific names.
One of the most enjoyable scenes in an aquarium is a group of fish swimming in unison, changing directions in an instant, yet never colliding with each other. How are they able to swim in unison?
Bettas require warm water to be happy and healthy. The problem is that Bettas are often kept in small bowls or tanks. These mini heaters are a perfect solution.
A profile of the aquarium fish known as the Black Widow - Gymnocorymbus ternetzi
A long time favorite in home aquaria, learn more about the care and breeding of the Buenos Aires Tetra.
Feeding newly hatched fry in an aquarium can be a challenge. This article discusses how to feed different types of aquarium fish fry.
Algae is one of the most frustrating problems to deal with. Here is how to identify and cope with Beard Algae.
Algae is one of the most frustrating problems to deal with. Here is how to identify and cope with spot algae.
Barbs are a lively family of schooling fish. Learn more about the popular Barb species in this overview of Barbs.
Are you thinking of buying a child or teen an aquarium? Feeling lost and wondering where to start? No worries, if you learn the key factors, you can help assure that your young person succeeds. Here's what you need to know.
How much and how often a fish should be fed is one of the first questions a new owner has. Here are the answers to those age old questions.
Aquariums in books always look perfect, but in real life they don't always look that way. This series shares real life experiences of aquarium owners, complete with photos, journals they have written, and step by step solutions for problems they may have.
Copper Sulfate is used in aquariums as an anti-fungal and anti-parasitic, as well as to remove snail infestations.
How to diagnose and treat Velvet disease
Testing your aquarium water is a key component of maintaining a healthy environment for your fish. Learn more about which kits are important for your needs.
A profile of the Clown Loach, Chromobotia macracanthus, including habitat, care, feeding, and breeding.
A profile of the Kissing Gourami - Helostoma temminckii, including habitat, care, feeding, and breeding.
Fish are amazing - some can fly, others can climb trees, and some, such as the labyrinth fish, can breathe out of water. How do they breathe air without lungs? Read on to find out.
Learning scientific names of fish can be daunting, so we all tend to use common names. However, if you wish to do research on your fish, knowing the scientific name is invaluable. Here is a handy list of common fish names that begin with the letter P, cross referenced to their scientific names.
Seeding an aquarium is actually nothing new. It's an old trick that has acquired new popularity. Learn how to seed your new aquarium and why you should try it.
A profile of the Bristlenose Catfish, Ancistrus cirrhosus, including habitat, care, feeding, and breeding.
One of the larger Barbs, the Denison Barb is a colorful and interesting fish keep, but requires a large aquarium. Learn more about habitat, care, and feeding this attractive fish.
A definition of the aquarium term mosquito larvae.
Rocks and other items used to decorate your aquarium can and will affect the water chemistry. Here is what to look for when considering rocks for your aquarium.
Did you know there are well over one hundred varieties of goldfish? Learn about various varieties of goldfish as you browse this colorful goldfish gallery.
A profile of the Bronze Cory (Corydoras aeneus), including habitat, care, feeding, and breeding.
A profile of the aquarium fish known as the Silver Dollar (Metynnis argenteus)
Banned by some, coveted by others, glow in the dark fish are the latest in long line of altered fish. The debate is hot and heavy over the sales of genetically altered pets. What do you think about them?
A profile of the Wimple (Myxocyprinus asiaticus), including habitat, care, feeding, and breeding.
Why do fish suddenly turn on one another? Are fish truly cannibalistic?
Step by step instructions for moving from a smaller to a larger aquarium.
Unsure if you really need a stand for the aquarium you are going to buy? Or perhaps aquarium stands not on your budget. Here are the reasons why you may, or may not, need to purchase a special aquarium stand.
Bettas, also known as Siamese Fighting Fish, are one of the most popular freshwater fish, and often the most poorly cared for.
The question is an old one, and is still debated. Can outdoor rocks gravel, or sand be used in an aquarium? Here's my take on the question.
Want a beautiful aquarium full of live plants? You can do it, with a little help. Plant expert Don Matakis explains how to select substrate, add Laterite, and plant tall stem plants.
Learning scientific names of fish can be daunting, so we all tend to use common names. However, if you wish to do research on your fish, knowing the scientific name is invaluable. Here is a handy list of common fish names that begin with the letter B (page 1), cross referenced to their scientific names.
A profile of the aquarium fish known as the Pearl Gourami (Trichogaster leeri)
What do the water hardness numbers actually mean? Is 25 mg/l soft or hard? This reference chart shows what hardness numbers mean, from soft to hard.
Sometimes referred to as flocculants, these water clarifier products are designed to help remove fine particulate matter from the water.
Livebearers are some of the most popular fish in the aquarium trade, prized for their hardiness, adaptivity to many habitats, and attractive coloration.
More power filters are sold than any other type of aquarium filter; they're easy to set up, reasonably priced and have a wealth of optional features.
Loaches are fun and generally easy to care for fish that do well in most community aquariums. Learn more about the popular Loach species in this overview of Barbs.
Aquarium air pumps are used to run air bubblers, bubble curtains, filters, and even decorations. This list covers the top aquarium air pumps for freshwater aquariums.