Fish Care Guides
Expert guides, health tips, and everything you need for your fish.
70 articles available
Care & Education
(52)How to Do a Water Change: The Right Way
Learn how to do aquarium water changes correctly. Step-by-step guide covering tools, technique, and common mistakes to avoid.
Read articleHow to Cycle a Fish Tank: The Nitrogen Cycle Explained Simply
Learn the nitrogen cycle step by step. Fishless cycling method, timeline, testing, and common mistakes that kill fish in new tanks.
Read articleFish Tank Decoration Ideas: Safe and Beautiful
Get inspired with safe fish tank decoration ideas including natural driftwood, live plants, rocks, and creative aquascaping styles for stunning aquariums.
Read articleHow to Set Up a Shrimp Tank: Beginner's Guide
Step-by-step guide to setting up your first shrimp tank. Covers tank size, substrate, cycling, plants, and the best shrimp for beginners.
Read articleAquarium Plants for Beginners: Easy Low-Light Species
Discover the best low-light aquarium plants for beginners. No CO2, no fancy lighting — just hardy species that actually thrive in simple setups.
Read articleFish Tank Heater Guide: Temperature for Tropical Fish
Everything about aquarium heaters. Learn the right temperature for tropical fish, how to choose a heater, and avoid common heating mistakes.
Read articleWhy Is My Fish Tank Cloudy? Causes and Fixes
Fish tank cloudy? Learn the common causes of cloudy aquarium water — white, green, or yellow — and how to fix each one without harming your fish.
Read articleHow to Breed Guppies: Step-by-Step Guide
Learn how to breed guppies successfully with our step-by-step guide. Covers selecting pairs, breeding setups, fry care, and common mistakes to avoid.
Read articleAquarium Algae: Types, Causes, and How to Control
Identify and control aquarium algae with our complete guide. Learn about green, brown, black beard, and hair algae — what causes them and how to fix it.
Read articleBest Aquarium Lights: LED Guide for Fish Tanks
Find the best LED aquarium lights for your fish tank. Covers planted tanks, fish-only setups, spectrum, PAR values, and top recommendations.
Read articleHow to Quarantine New Fish Before Adding to Tank
Learn how to quarantine new fish before adding them to your main tank. Step-by-step setup, treatment protocols, and why quarantine saves fish lives.
Read articleHow to Set Up a Nano Aquarium: Complete Small Tank Guide
Learn how to set up a stunning nano aquarium. Equipment, stocking ideas, plant choices, and maintenance tips for tanks under 10 gallons.
Read articleFish Breeding Basics: A Getting Started Guide for Beginners
Learn the fundamentals of breeding aquarium fish. Covers livebearers, egg layers, breeding setups, fry care, and common mistakes beginners make.
Read articleBest Aquarium Gravel and Substrate Options: A Complete Guide
Compare the best aquarium substrates including gravel, sand, soil, and specialty options. Find the right substrate for your fish, plants, and tank style.
Read articleIch (White Spot Disease): Complete Treatment and Prevention Guide
Learn how to identify, treat, and prevent ich (white spot disease) in aquarium fish. Covers the ich lifecycle, treatment, and prevention.
Read articleHow to Acclimate New Fish to Your Tank: Step-by-Step Guide
Learn the right way to acclimate new fish to your aquarium. Covers float method, drip acclimation, and tips to reduce stress during the transition.
Read articleHow to Lower Ammonia in a Fish Tank
Learn how to lower ammonia levels in your fish tank quickly and safely with water changes, filtration tips, and long-term prevention strategies.
Read articleBest Air Pumps for Aquariums
Find the best air pump for your aquarium. Compare quiet, powerful, and battery backup options for tanks of all sizes with our detailed buying guide.
Read articleLive vs Frozen Fish Food: Feeding Guide
Compare live and frozen fish food options including nutrition, safety, convenience, and cost. Learn which feeding method works best for your aquarium fish.
Read articleFish Tank Stand Guide: Weight and Safety
Choose the right fish tank stand with our guide covering weight capacity, materials, leveling, and safety tips to keep your aquarium secure and stable.
Read articleAquarium CO2 Systems for Planted Tanks
Learn how CO2 injection systems work for planted aquariums. Compare DIY and pressurized setups, diffusers, regulators, and tips for healthy plant growth.
Read articleTank Cleaning Day Doesn't Have to Be a Nightmare — Here's How I Learned to Do It Right
Learn the right way to clean your fish tank without stressing your fish. Step-by-step tank maintenance tips from an experienced fishkeeper.
Read articleWhy Is My Fish Acting Weird? Common Behaviors Explained (and When to Worry)
Understand why your fish are acting strange. Learn about aggression, glass surfing, hiding, and other common fish behaviors with practical solutions.
Read articleYour Fish Is Sick — Now What? A Plain-English Guide to Common Fish Diseases
Identify and treat common fish diseases including ich, fin rot, and dropsy. Practical treatment advice from years of fishkeeping experience.
Read articleSetting Up Your First Fish Tank: Everything I Wish I'd Known Before I Started
Complete guide to setting up your first fish tank. Learn about cycling, equipment, and common mistakes from a fishkeeper who made all of them.
Read articleSo Your Fish Had Babies — A Practical Guide to Raising Fry Without Losing Your Mind
Your fish had babies and you're not sure what to do? Learn how to feed, protect, and raise fish fry successfully with this practical guide.
Read articleSummer Is Coming and Your Fish Tank Is in Trouble — How to Beat the Heat
Keep your aquarium cool during summer heat waves. Practical tips for managing high water temperatures and protecting your fish from overheating.
Read articleYour First Planted Tank: How to Grow Real Plants Without a Botany Degree
Start a beautiful planted aquarium even as a beginner. Learn which plants to choose, what substrate to use, and how to keep everything alive and growing.
Read articleHow to Set Up Your First Aquarium: Complete Beginner's Guide
Learn how to set up your first aquarium step by step. Tank selection, equipment, cycling, and stocking advice from experienced fishkeepers.
Read articleThe Nitrogen Cycle Explained: Why Your Tank Needs to Cycle First
Understand the aquarium nitrogen cycle and why cycling your tank is essential. Step-by-step fishless cycling instructions for beginners.
Read articleBest Freshwater Fish for Beginners: Hardy and Beautiful Species
Discover the best freshwater fish for beginners. Hardy, colorful, and easy to care for species perfect for your first aquarium.
Read articleBetta Fish Care: The Complete Guide to a Happy Betta
Complete betta fish care guide covering tank setup, feeding, health, and common mistakes. Give your betta the life it deserves.
Read articleHow to Lower Ammonia in Your Fish Tank Fast
Learn how to lower ammonia in your fish tank quickly and safely. Causes, emergency steps, and long-term prevention from experienced fishkeepers.
Read articleBest Fish Tank Filters: Finding the Right One for Your Setup
Compare fish tank filter types: HOB, sponge, canister, and internal. Find the right filter for your aquarium size and fish species.
Read articleWhat Do Fish Eat? A Guide to Feeding Your Aquarium Fish
Learn what aquarium fish eat, how much to feed, and how to choose the right food. Flakes, pellets, frozen, and live food options explained.
Read articleCommon Fish Diseases: Identification and Treatment Guide
Identify and treat common aquarium fish diseases including ich, fin rot, velvet, and more. Symptoms, causes, and proven treatment methods.
Read articleGoldfish Care Guide: They Need More Than a Bowl
Complete goldfish care guide. Learn proper tank size, feeding, water conditions, and why goldfish need much more than a bowl to thrive.
Read articleLive Plants for Aquariums: Best Beginner-Friendly Options
Discover the best beginner aquarium plants that are easy to grow. Java fern, anubias, hornwort, and more low-maintenance live plants.
Read articleTropical Fish Tank Temperature Guide: Getting It Just Right
Learn the ideal fish tank temperature for tropical, coldwater, and specific species. Heater selection, troubleshooting, and temperature stability tips.
Read articlePleco Care Guide: The Algae-Eating Catfish
Everything you need to know about pleco fish care. Tank size, diet, common species, and why the common pleco might not be the right choice for your aquarium.
Read articleOscar Fish Care: Big Fish, Big Personality
Complete oscar fish care guide. Tank size requirements, feeding, temperament, and what to expect from these intelligent, personality-packed cichlids.
Read articleAquarium CO2 Systems: Do Planted Tanks Need Them?
Learn whether your planted aquarium needs a CO2 system. Types of CO2 injection, setup guides, costs, and alternatives for lush aquarium plant growth.
Read articleFish Tank Cycling Without Fish: The Humane Method
Step-by-step fishless cycling guide for new aquariums. Learn how to build beneficial bacteria without exposing fish to toxic ammonia and nitrite.
Read articleHow to Set Up a Planted Aquarium: A Practical Guide
Step-by-step guide to setting up a planted aquarium. Substrate, lighting, CO2, easy plants, and common mistakes to avoid.
Read articleCommon Fish Diseases and How to Treat Them
Identify and treat the most common aquarium fish diseases. Ich, fin rot, dropsy, velvet, and more with practical treatment steps.
Read articleBest Fish Tank Filters: Complete Buying Guide
Compare HOB, canister, sponge, and internal filters. Find the right aquarium filter for your tank size, budget, and fish species.
Read articleHow to Test and Maintain Water Quality in Your Aquarium
Learn how to test and maintain aquarium water quality. Ammonia, nitrite, nitrate, pH testing and what your results mean for fish health.
Read articleBest Fish Food: What to Feed Your Aquarium Fish
Learn what to feed your aquarium fish. Flakes, pellets, frozen, and live food compared with feeding schedules and portion tips.
Read articleHow to Clean a Fish Tank: Step-by-Step Guide
Learn how to properly clean your fish tank without harming fish or beneficial bacteria. Water changes, gravel vacuuming, and algae removal.
Read articleSaltwater vs Freshwater Aquariums: Which Is Right for You?
Compare saltwater and freshwater aquariums. Cost, difficulty, fish options, equipment needs, and honest advice on which to start with.
Read articleBest Tank Mates for Betta Fish: What Actually Works
Find the best tank mates for betta fish. Proven compatible species, tank size requirements, and how to introduce new fish safely.
Read articleHow to Fix a Leaking Fish Tank
Discovered a leak in your fish tank? Learn how to identify the source, safely rehome your fish, and repair the seal with this step-by-step repair guide.
Read articleBreed Guides
(18)Goldfish Care: What Most People Get Wrong
Most goldfish care advice is wrong. Learn proper tank size, feeding, water temperature, and why goldfish bowls are cruel.
Read articleBetta Fish Care Guide: Everything You Need to Know
Everything you need to know about betta fish care. Tank setup, feeding, diseases, tank mates, and why bowls are never acceptable.
Read articleRasbora Care Guide: Schooling Fish Basics
Complete care guide for rasboras including tank setup, water parameters, feeding, and tank mates. Learn how to keep these colorful schooling fish thriving.
Read articleAquarium Snails: Types and Care Guide
Discover popular aquarium snail species, their care needs, feeding habits, and benefits. Learn which snails are best for your tank.
Read articleGuppy Care Guide: Breeding, Tank Setup, and Diet
Complete guppy care guide covering tank setup, breeding, feeding, and water parameters. Learn how to keep these colorful livebearers happy and thriving.
Read articleAngelfish Care Guide: Tank Mates and Feeding
Learn everything about freshwater angelfish care including ideal tank mates, feeding tips, water parameters, and common mistakes to avoid.
Read articleOscar Fish Care Guide: Tank Size and Feeding
Complete oscar fish care guide covering tank size, feeding, temperament, tank mates, and common health issues. Everything you need for these big cichlids.
Read articleCorydoras Catfish Care Guide: Tank Mates and Diet
Complete corydoras catfish care guide covering diet, tank mates, water parameters, and breeding tips. Everything you need for happy cory cats.
Read articleDiscus Fish Care Guide: The King of Aquariums
Master discus fish care with our complete guide. Learn about tank setup, water parameters, feeding, and why discus are called the king of aquariums.
Read articlePleco Care Guide: Types and Tank Requirements
Complete pleco care guide covering popular types, tank size requirements, diet, and common mistakes. Learn which pleco is right for your aquarium.
Read articleCichlid Care Guide: African vs South American Species Compared
Complete cichlid care guide comparing African and South American species. Tank setup, diet, temperament, and compatibility tips for both types.
Read articleMolly Fish Care Guide: Varieties, Breeding, and Tank Setup
Everything you need to know about molly fish care. Explore popular varieties, breeding tips, tank requirements, and common health issues.
Read articleCherry Barb Care Guide: Peaceful Community Fish
Complete cherry barb care guide covering tank setup, water parameters, diet, breeding, and compatible tank mates for this peaceful community fish.
Read articleDwarf Gourami Care Guide: Colors and Tank Setup
Everything you need to know about dwarf gourami care, including color varieties, tank setup, water parameters, feeding, and disease prevention tips.
Read articleThe 12 Best Freshwater Fish for Beginners (From Someone Who's Kept Them All)
Discover the best freshwater fish for beginners. Tank size requirements, temperament, care tips, and honest recommendations from an experienced keeper.
Read articleBest Freshwater Fish for Beginners: Top 10 Species That Actually Survive
Discover the top 10 freshwater fish for beginners. Hardy, colorful species that forgive mistakes and thrive in community tanks.
Read articleNeon Tetra Care Guide: Tank Setup and Breeding
Complete neon tetra care guide covering tank requirements, ideal water parameters, feeding, breeding tips, and compatible tank mates.
Read articleKoi Fish Care Guide: Pond Setup and Feeding
Learn everything about koi fish care including pond setup, water quality, feeding schedules, and seasonal maintenance to keep your koi thriving.
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