Care guides
Setup, cycling, water quality, equipment, and health — organized by topic so you can fix the problem in front of you.
Essential guides for new aquarists
Master the drip method, plop and drop, and temperature matching techniques. Learn step-by-step procedures for safely introducing fish to your aquarium and troubleshooting acclimation problems.
Essential safety guide for households with children and pets. Learn about securing aquariums, childproofing measures, electrical safety, and preventing accidents around fish tanks.
Why inch-per-gallon fails, how to think about bioload and behavior, and how to plan communities that stay stable — with links to tank-size recipes and tools.
A comprehensive step-by-step guide for setting up your first aquarium in 2026. Updated with modern equipment recommendations, cycling methods, and beginner-friendly fish options based on current best practices.
Complete beginner guide to saltwater reef aquariums. Learn tank setup, cycling, equipment selection, fish and coral choices, and maintenance for a thriving reef tank in 2026.
Understanding and managing water parameters
Comprehensive guide to aquarium water sources including tap water, reverse osmosis, deionized water, well water, and aging/treatment techniques for safe aquarium use.
Master aquarium water chemistry with detailed coverage of test kits, essential parameters, testing frequency, and interpreting results. Learn to maintain perfect water conditions for healthy fish.
Choosing and maintaining aquarium equipment
Comprehensive comparison of aquarium filtration systems including hang-on-back, canister, sponge, and sump filters. Learn the pros and cons of each type to choose the perfect filtration for your tank.
Complete guide to aquarium heating including heater types, proper sizing calculations, strategic placement, thermostat management, and maintaining stable temperatures for healthy fish.
A technical look at aquarium substrates, from buffering and cation exchange to rooting depth, detritus handling, and layer design. Best for planted and specialty setups.
Master aquarium lighting with comprehensive coverage of PAR values, photoperiod management, LED technology comparisons, and algae control through proper illumination strategies.
Keeping your aquarium clean and healthy
Comprehensive maintenance schedule covering daily, weekly, monthly, and seasonal aquarium care tasks. Learn systematic approaches to keep your tank pristine and fish healthy year-round.
Master algae control in aquariums. Identify different algae types, understand causes, implement removal strategies, and prevent future outbreaks with 2026 best practices and products.
Critical emergency procedures for aquarium disasters. Power outages, equipment failures, disease outbreaks, and fish emergencies - what to do when every minute counts.
Complete nutrition guide for aquarium fish. Learn what to feed, how often, and how much. 2026 updated recommendations for optimal fish health and coloration.
Step-by-step guide to safely moving your aquarium. Learn how to pack fish, transport equipment, minimize stress, and successfully set up your tank at a new location.
Complete guide to preparing your aquarium for travel and vacation. Learn about auto feeders, vacation blocks, asking friends for help, and ensuring your fish stay healthy while you're away.
Master aquarium maintenance with 2026 techniques. Learn proper water change procedures, gravel cleaning, filter maintenance, and troubleshooting common problems.
Preventing and treating fish illnesses
Follow a practical quarantine process for new aquarium fish, from day-one acclimation through observation, treatment decisions, and the final move into your display tank.
Comprehensive guide to diagnosing and treating ich, fin rot, dropsy, velvet disease, and other common aquarium fish ailments. Learn professional treatment protocols for successful recovery.
Detailed care for specific fish types
Learn how to select fish that coexist peacefully. Discover compatible community combinations, semi-aggressive mixing strategies, and how to avoid disastrous tank mate choices that lead to stress and aggression.
Comprehensive guide to cichlid care covering African Rift Lake and South American species. Learn about tank setup, aggression management, water parameters, and species-specific requirements.
Master freshwater shrimp keeping in 2026. Learn care requirements for Cherry Shrimp, Amano Shrimp, and other popular species. Covers breeding, tank setup, water parameters, and common issues.
Learn what common aquarium fish behaviors actually mean, from schooling and hiding to courtship, chasing, and stress responses. Built for fishkeepers who want to read a tank more accurately.
Raising the next generation
Creating beautiful underwater landscapes
Master the art of aquascaping with golden ratio principles, focal point creation, hardscape selection, and strategic plant placement. Learn professional design techniques for breathtaking aquarium layouts.
Comprehensive comparison of live versus artificial aquarium plants covering maintenance requirements, costs, benefits for fish, and practical considerations for your tank.
For experienced aquarists
Master CO2 injection for aquarium plants with detailed guidance on pressurized systems, DIY setups, bubble counters, and daily scheduling for optimal plant growth and algae control.
Build a thriving planted aquarium from start to finish. Covers low-tech to high-tech setups, aquascaping techniques, plant selection, and maintenance for every skill level.
Can't find what you're looking for? Check out our blog for the latest tips or browse our comprehensive fish database.