Add any water needed to compensate for evaporation
Remove any algae from glass
Every 2 weeks:
Change water (amount changed depends on stocking level)
Remove dead leaves from live plants and trim if needed
Check pH, total alkalinity, ammonia levels, nitrate and nitrite levels, specific gravity (for saltwater and brackish tanks), and filter flow (clean if needed)
Stir top of substrate and remove debris
Every 1 to 3 months:
Replace carbon in filter
Clean protein skimmer (marine saltwater tanks), filter pipework, and quartz sleeve of ultraviolet sterilizer (if applicable)