5 Quick and Easy Tricks to Improve Your Aquarium Filter There are a million and one ways to hack the filtration in your fish tank to optimize its efficiency, save money and time, and more. Some of these methods are just gimmicks, while others are pure gold that experienced veterans in the fishkeeping hobby have discovered over time. After owning hundreds of aquarium filters in our fish store and personal fish rooms, we’ve narrowed down our top 5 simple tips and tricks for getting the best performance out of your filtration. 1. Switch to Reusable F...

Colony Breeding: The Easiest Way to Breed Livebearers for Profit Breeding livebearers like guppies, mollies, and platies is not difficult, and many hobbyists joke that all you need to do is add water. But what if you want to produce large numbers of fish to sell for profit at your local fish store or aquarium society? In addition, what if you are limited by budget or space and cannot afford to set up tons of tanks or giant ponds like the commercial farms? Keep reading to see how we’ve produced hundreds of livebearers in a single fish tank with minimal effo...

Top 5 Easy Fish Breeding Ideas for Your Next 20-Gallon Aquarium When our founder Cory first got into fishkeeping, funds were tight, so he started breeding fish to help with his hobby expenses. After many years of experience keeping fish rooms and tanks of all sizes, he still loves breeding fish at home in the versatile 20-gallon aquarium (both the high and long versions). Learn about his top 5 favorite fish and invertebrates that are easy to spawn and raise up in a colony setting. 1. Mouth-Brooding Bettas Betta albimarginata Most people know about Betta ...

Care Guide for Cherry Barbs — Peaceful Barb for Community Tanks Barbs often get a bad reputation because of their boisterous, fin-nipping behavior, but cherry barbs are an exception to the rule. This 2-inch (5 cm) schooling fish acts like your average, mild-mannered tetra and mixes well with other community fish. They are commonly sold at pet stores because of their vivid redness, energetic personality, and ease of breeding. Learn all about how to care for this popular and peaceful barb. What are Cherry Barbs? Puntius titteya are found in the rainforests ...

How to Balance Aquarium Lighting to Grow Healthy Plants (and Avoid Algae) A brand-new planted tank always looks so beautiful and pristine, but if the tank is unbalanced, those same plants may become sickly-looking and overrun with algae within a couple of months. Plants and algae both use the same resources— such as light, nutrients, and carbon dioxide — so the goal is to balance these resources so that the plants grow stronger and outcompete the algae. For instance, too much or too little light can cause algae growth, so we need to fine-tune it for optimal plant g...

Top 7 Oddball Fish for a 30-Gallon Aquarium If you’ve already kept all of the most popular fish in the aquarium hobby, you may be looking for some oddball species to try. They tend to be unusual in appearance, have special care requirements, or may be harder to source. Because of their rarity, your friends and family are bound to ask what kind of strange creature they just spotted lurking in your aquarium. In previous articles, we covered our favorite choices for nano tanks, so let’s talk about the top 7 medium-sized oddballs for 29- o...

Care Guide for Cherry Shrimp — Tank Setup, Food, and Breeding The aquarium hobby is crazy about Neocaridina cherry shrimp and for good reason too. Not only are they excellent clean-up crew members that eat algae and leftover fish food, but they come in almost every color of the rainbow and are tiny enough to fit in a 2-gallon nano tank. Compared to other types of ornamental shrimp, they are pretty beginner-friendly and can handle a wide range of water parameters. Finally, these adorable critters are very easy to breed and can be sold at local fish store...

Top 10 Midwater Schooling Fish for Your Next Aquarium When planning out what kind of fish to add to an aquarium, we like to pick species that live in different layers of the water column. Instead of having animals that cluster in the same area, the entire tank is filled with interesting activity. Since we’ve already talked about our favorite top-dwelling fish and bottom dwellers, let’s show off the most colorful and lively options that swim in the middle of the aquarium. 1. Green Neon Tetra Paracheirodon simulans The green neon tetra is the sm...

How to Fertilize Your Planted Tank the EASY Way We're big proponents of getting live aquatic plants because of their natural beauty and ability to purify water, but a common question we get is, “Do I need to fertilize my aquarium plants?” From our experience, most people have to fertilize because fish waste does not provide the proper amounts of nitrate, potassium, phosphate, and other trace minerals that plants require to flourish. Another big factor is your local tap water. If you live on well water, your water may contain lots of he...

Care Guide for Bucephalandra — A Colorful Alternative to Anubias When it comes to beginner-friendly aquarium plants, most people think of anubias or java fern. But if you’re looking for something a little more unique, try bucephalandra. This lovely plant has unusual, iridescent leaves, does well in low lighting, and is perfect for nano aquariums. However, they tend to cost more than anubias and are very slow growing compared to other aquatic plants. Keep reading to learn all about the beautiful bucephalandra. What is Bucephalandra? Bucephalandra (or “buce”...

Care Guide for Oscar Fish – The South American “Water Dog” Oscar cichlids are one of the most popular fish sold at pet stores because of their beautiful colors and unique personality. These “water puppies” are intelligent enough to recognize you as their owner, will come up to the front of the tank to greet you, and can be trained to eat out of your hand. Also, they can get moody and sulk at the bottom of the aquarium because you altered their environment by doing a water change or moving the decorations. However, many people don’t realize they grow ...

Top 5 Colorful Killifish That Every Fish Keeper Should Try Killifish are one of the most colorful fish in the freshwater aquarium hobby, but with such an amazing array of hues and patterns, why aren’t they as popular as livebearers or African cichlids? Many veteran fishkeepers will tell you that they are top-dwelling fish that love to jump out of the water, so you must have a close-fitting lid and cover even the smallest hole to prevent their escape. Also, annual killifish can be harder to keep because they only live for a few months after you hatch ...

Care Guide for Boesemani Rainbowfish — Tank Setup, Breeding, and More One of the most striking and recognizable rainbowfish is the Boesemani rainbow. This schooling fish is prized for its unique-looking, bicolored body and is the perfect statement piece for a medium-sized community aquarium. Find out what it takes to keep this stunning species happy, healthy, and showing off the best colors possible. What are Boesemani Rainbowfish? Melanotaenia boesemani has the classic rainbowfish profile with its pointed snout, deep-bodied profile, and large, distinct scales....

Care Guide for Black Neon Tetras — Our Fav Underrated Schooling Fish One of the unsung heroes of the freshwater aquarium hobby is the humble black neon tetra. It often gets overlooked and outshone by its more popular cousins, the regular neon tetra and cardinal tetra. Yet they are one of our favorite fish to work with at the Aquarium Co-Op retail store. Because of their strong constitution and robust health, we often recommend them to anyone looking to start a new tank. Their nano size makes them accessible to people with smaller aquariums, while their cheap p...

How to Set Up an Aquarium CO2 System the Easy Way When it comes to planted tanks, we always encourage beginners to start with easy, slow-growing plants that only need low lighting and an all-in-one fertilizer. However, certain plants are a little more difficult to grow underwater and may require high lighting and extra carbon dioxide (CO2) beyond what is naturally provided in the air. When it comes to injecting CO2 gas into water, aquarists have tried all kinds of techniques, types of equipment, schedules, and dosage amounts to put together ...

How (and How Often) to Test Aquarium Water for Healthy Fish and Plants Regular water testing is vital for keeping tabs on the health of your aquarium fish and plants, but most beginners in the fishkeeping hobby are not aware of the importance of this practice. If the aquarium is “dirty-looking,” then people may clean the tank and do a water change. In reality, aquarium water contains invisible waste chemicals from the fish’s poop and other compounds that can be dangerous at high enough levels. Test kits are the only way to accurately measure if your water is cle...