Before adding fish, you must "cycle" the tank. This is the process of growing beneficial bacteria that convert ammonia (from fish waste) into nitrites, and finally into less harmful nitrates. This typically takes 4–6 weeks. You can speed this up using bottled bacteria starters or "seeding" from an established aquarium. Phase 4: Maintenance Routine Consistent care is the secret to a thriving tank.
Place the tank on a level, sturdy stand away from direct sunlight (to prevent algae) and drafty windows. Freshwater Aquariums Basic Aquarium Setup and M...
For beginners, a 20-gallon tank is often recommended. Larger volumes are actually easier to maintain because water chemistry stays more stable. Before adding fish, you must "cycle" the tank
Most tropical fish require a steady temperature between 75°F and 80°F. Before adding fish