What is your daily, weekly and monthly maintenance routine?

[Myka]

I keep a hand-written log of all maintenance and test results. I use colored highlighters for carbon, GFO, Spur2, change-outs and dosing etc so it is easier to find in my logs. I log new fish additions, difficult coral updates, any losses, out of ordinary dosing, bulb changes, lighting schedule changes, pretty much everything. I also refer to my log regularly to note any patterns or reactions.

Daily(ish):

Inspect tank and replace knocked over corals if needed
Check temperature
Feed fish smorgasbord (every 2nd day) add Selcon and Garlic Xtreme

Weekly(ish):

10 gallon water change, blast rock with baster, scrape front 3 sides of glass inside beforehand, use gravel vacuum on sandbed.

After WC, let carbon reactor run for 24 hours (once per week)
Refill ATO bucket
Refill 65 gallon barrel with RO/DI water, check TDS on every use
Refill salt mixing bucket, mix in salt, add K and Mg.
Empty skimmer cup, clean neck
Replace filter pad in sump (2x weekly)
Test salinity (w/ hydrometer), Cal, Alk, Mg, K and adjust if necessary (usually ok)
Feed anemones and some LPS corals frozen mysis
Dose Zeovit Coral Snow
Inspect corals closely for signs of parasites/disease/pests/etc.

Monthly(ish):

Replace GFO in reactor (every 6 weeks)
Replace carbon in reactor (after 4 uses)
Test salinity with refractometer, pH, nitrate, phosphate
Mix calcium and carbonate solution for dosers
Siphon detritus from sump
Frag corals
Clean salt creep
Scrape coralline from back glass
Dose Spur2 (every 3 weeks)

Quarterly(ish):

Clean all pumps inc powerheads
Remove entire skimmer and clean
Calibrate all meters (pH, TDS, refractometer)

Yearly(ish):

Replace T5 bulbs (actinics)
Replace MH bulbs - NOT at the same time!
Replace all doser tubing
Replace 50% of the sandbed (I sterilize and leach PO4 and NO3 before reusing the next year)
Replace heaters every 2-3 years

Automated:

Top off water
Calcium and alkalinity dosers
Lights on timers