Beginner-first freshwater aquarium authority
Build your first tank with guides that feel clear, calm, and practical from day one.
Aquarium Friend is organized to help beginners set up the right gear, care for freshwater fish well, and fix common tank problems before they turn into expensive mistakes.
Start here
Starter kits, setup checklists, and first-tank decisions.
Compare gear
Filters, tanks, and equipment choices that fit real beginner setups.
Fix problems fast
Cycling, water quality, algae, and troubleshooting paths when something feels off.
Featured gear guide
Best Filter for Goldfish
A fast way to compare high-waste filtration options without overbuying the wrong canister or HOB setup.
Low-flow setup guide
Best Filter for Betta Fish
Narrow the choice quickly if you need quiet filtration, gentle flow, and fewer mistakes in a smaller tank.
Freshwater species care
Peacock Gudgeon 101
A clear example of the kind of care guide beginners can use for tank mates, feeding, and behavior questions.
Browse by system
Move through the site by the kind of help you need.
Beginner Setup
Tank size, core equipment, cycling prep, and what to handle in the first month.
Fish Care Guides
Species care, compatibility, feeding, and practical next steps once the tank is stable.
Aquarium Equipment
Buying guides and comparisons for filters, tanks, lights, stands, and beginner gear.
Troubleshooting & Reference
Fast links for cycling confusion, cloudy water, algae cleanup, maintenance mistakes, and recovery checks.
When your tank feels off
Use the troubleshooting hub to narrow the problem before you buy another fix.
The hub now collects the fastest reads for cycling, water clarity, maintenance, and common setup mistakes so beginners can diagnose issues without digging through a raw archive.
- Start with the nitrogen cycle and setup checklist.
- Jump to problem-area cards for water quality, equipment, fish behavior, and plant maintenance.
- Return to the main systems if you need broader guides beyond the immediate fix.