- You're happy spending hours carefully checking water parameters.
- You find joy observing tiny, gradual changes in a sealed world.
- You are someone who feels truly at peace caring for life.
- You quickly lose interest in slow, repetitive daily tasks.
- You get annoyed when small, hidden problems derail progress.
- You hate knowing tiny lives depend on your constant care.
Your first moves.
Don't start from scratch. Start from here.
Choose Your First Tank Size Wisely
For beginners, it's recommended to start with a tank between 20-30 gallons. Smaller tanks (under 10 gallons) are surprisingly difficult to maintain stable water parameters in, while larger tanks require a significant investment in equipment and maintenance.
Cycle Your Aquarium
This is the most critical step and cannot be skipped. 'Cycling' establishes beneficial bacteria that convert toxic ammonia (from fish waste) into less harmful nitrates.
Select Appropriate Substrate and Decorations
Choose a substrate suitable for your planned inhabitants and plants. For planted tanks, a nutrient-rich substrate is essential.
Install and Test Equipment
Set up your filter, heater (if needed), and lighting according to manufacturer instructions. Ensure the filter provides adequate water turnover for your tank size (typically 4-6 times the tank volume per hour).
Master Aquarium Keeping with online courses
Find the highest-rated beginner courses on Udemy before you invest in gear.
Algae Scraper
AQQA Magnetic Aquarium Fish Tank Glass Cleaner, Dual-Blades Algae Scraper — Conveniently cleans glass from the outside, reducing the need to reach into the tank.
Aquarium Air Pump
Uniclife Aquarium Air Pump Dual Outlet with Accessories — Reliable dual outlet pump with tubing and air stones suitable for tanks from 5 to 200 gallons.
Related hobbies
Ranked by dimensional and personality compatibility with Aquarium Keeping.