How to change aquarium water: prepare, siphon and restart
Plan a routine freshwater water change, prepare suitable replacement water, control siphoning and check equipment and fish afterwards.
Care routines
Water changes, filter care, feeding, substrate cleaning and water testing. Choose the steps for your setup and check the fish and equipment afterwards.
How to clean aquarium filter media and decide what to replace
Identify mechanical, biological and targeted treatment media, assess blockage and damage, then restart and monitor the filter.
How to feed a community aquarium so every fish gets access
Watch where food goes, who eats it and what remains. Adjust food placement and portions instead of simply adding more.
How to clean aquarium gravel, sand and planted substrates
Choose a cleaning method for the bottom, control suction and water volume, and protect animals, roots and substrate layers.
How to test aquarium water and keep useful records
Check what your kit measures, follow sampling and reading instructions, and record units and context so results guide action.