Choose a tank size based on fish type and number. It should have filtration, a heater (for tropical fish), and enough lighting.
Keep pH, ammonia, nitrites, and nitrates at appropriate levels by testing water with test kits. Regular partial water changes (10-25%) eliminate waste and preserve water quality.
Feed your fish a healthy diet. Most fish thrive on high-quality flake or pellet meal with occasional frozen or live items.
Regularly scrape algae, vacuum substrate, and clean ornaments in the tank. Replace filter media when needed.
Check your fish everyday for disease, strange behavior, and stress. Isolate sick fish or use proper treatments to treat diseases quickly.
Minimize handling your fish as it can stress them. When necessary, use a soft net or cup to handle them gently and avoid sudden movements.
Learn about the specific needs of your fish species. Different species have different requirements regarding water temperature, pH, tank mates, and diet.
Do not overcrowd the tank. Maintain appropriate stocking levels to prevent stress and aggression among fish.