fellfolioPet knowledge · Care guide
Aquariums
A good aquarium begins with water, a filter and time, before the first fish goes in. Learn how biological filtration becomes established, which fish can live together and what regular care involves.
Start with the essentials
- Prepare the tank and test its water before adding fish
- Choose species by adult size, social behaviour and water needs
- Connect testing, water changes and filter care into a routine
Care guide
Care that works in everyday life.
Setting up a freshwater aquarium: tank, filter and water
Choose a tank, understand the nitrogen cycle and prepare for the first fish without rushing the biological filter.
Read guide
Choosing aquarium fish that can live well together
Adult size, water conditions, group behaviour and food determine a suitable freshwater stocking plan.
Read guide
Caring for an aquarium: watch the water, filter and fish
A workable freshwater maintenance routine built around tests, partial water changes and observing the fish.
Read guideFree tools
Practical plans for the day your pet comes home.
Prepare for a new pet
Build a checklist for housing, daily care and backup arrangements, then keep a copy.
Build your checklist ↗Calculate electricity costs
Work out what lighting, heating and filters cost from their wattage and running time.
Calculate costs ↗Photo: A freshwater aquarium containing plants and small fish · Netha Hussain · CC0 1.0. Cropped, resized and converted to WebP
