Overview
A healthy reef is built on consistency, not heroics. A little attention on a regular schedule prevents the swings and surprises that crash tanks. Here is a practical daily / weekly / monthly routine you can adapt to your own system.
Daily
- Check the auto top-off and top up evaporated water (salinity rises as water evaporates).
- Feed appropriately and watch that every fish is out, eating, and behaving normally.
- Glance at the temperature and confirm pumps, heater, and skimmer are running.
Weekly
- Test the key parameters — alkalinity, calcium, magnesium, nitrate, and phosphate — and adjust dosing.
- Clean the glass and empty the skimmer cup.
- Do a water change (commonly 10–20%), matched for temperature and salinity.
- Top off or refill any dosing containers.
Monthly
- Replace or recharge filter media such as carbon and GFO.
- Rinse pumps and powerheads and clear any detritus or coralline buildup.
- Deep-clean the glass, calibrate probes, and check your RODI unit’s output (TDS).
As Needed
Replace lighting or check PAR on a longer cycle, restock salt mix and test reagents before they run out, and stay alert for pests and early signs of trouble. Building these into a rhythm means small corrections instead of emergencies.
Tools That Make It Easier
An auto top-off, a reliable test kit (and a spare for reagents), a dosing pump for the big-three, and a quality RODI unit turn maintenance from a chore into a quick routine. The upfront investment pays for itself in stability and saved livestock.
Related Guides
- Your First Saltwater Tank
- Water Changes: How Much & How Often
- Common Beginner Mistakes
- Salinity & Specific Gravity
Frequently Asked Questions
How often should I do water changes?
A common routine is 10 to 20% every one to two weeks, though smaller more frequent changes give the most stability. Adjust to your stocking level and nutrient readings.
What should I test for weekly?
At minimum alkalinity, calcium, magnesium, nitrate, and phosphate. Alkalinity is the most important to track weekly because it moves the fastest and drives coral health.
How much time does a reef tank take to maintain?
With a good routine and helpers like an auto top-off and doser, expect a few minutes daily plus roughly 30–60 minutes weekly for testing and a water change. Consistency matters far more than hours spent.