Setting up a 60-litre freshwater aquarium: the key steps
Published by Planète Pets · managing editor: Clément Lacaille · how our guides are written
A 60-litre aquarium is one of the most recommended volumes for a first freshwater tank: large enough to stay stable, small enough to sit on an ordinary stand. Success depends less on the gear than on respecting the nitrogen cycle, the biological process that turns toxic waste into less harmful compounds. A study by Daims and colleagues published in 2015 in Nature showed that bacteria of the genus Nitrospira can carry out complete nitrification on their own, a role long underestimated in filters (see the study). Find all our setup guides in the fish bedding and habitat section.
Contents · 6 sections
Why is 60 litres a good starter volume?
The larger the water volume, the more slowly parameters (temperature, pH, nitrite level) shift, which forgives a beginner's small mistakes. A 60-litre tank houses a small shoal of peaceful fish without dominating a living room, unlike nano tanks that demand an already experienced hand.
The essential equipment
- A filter matched to the volume, which hosts the nitrifying bacteria: it is the heart of the system.
- A thermostatic heater to keep a stable temperature, generally between 24 and 26 °C.
- Lighting for the plants and a nutrient-rich or neutral substrate depending on the layout you want.
- Water tests to track ammonia, nitrite, and nitrate during start-up.
Cycling: the step you must not rush
Before any fish, let the filter build its bacterial population over three to six weeks. You watch ammonia and nitrite rise then fall until each reads zero: our guide on water tests and the nitrogen cycle details this monitoring step by step.
Plant and decorate before the fish
Adding plants, wood, and rocks during cycling lets the layout settle and already provides hiding spots. Plants consume some of the nitrate and speed the tank toward balance.
Adding the first fish
Once the cycle is complete, introduce fish in small groups, slowly acclimating the bag to the tank's temperature and water. To build a sensible budget, compare with our 60-litre aquarium starter kit.
Frequently asked questions
Can you speed up cycling?
Yes, by seeding the filter with media or bacteria from a mature tank, but water tests remain the only reliable judge before adding fish.
How many fish in 60 litres?
It depends on the species, but aim for a small shoal of modestly sized fish and build up gradually rather than overstocking from day one.
Should you change water during cycling?
Small changes are enough while no fish are present; regular changes are reserved for the stocked phase. Browse all our guides on the fish hub.
An accessory from our shop for this use: Ceramic pebble hide for shrimp and small fish (€20.90) · the whole shop
This guide is part of Planète Pets’s Fishkeeping universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.