Keeping a thriving reef tank isn’t just about good equipment and beautiful corals—it’s about consistent, smart maintenance. A clear reef tank maintenance schedule helps you avoid algae outbreaks, unhappy fish, and sudden parameter swings. Use this guide as a practical checklist you can adapt to your own system.

Daily & Weekly Reef Tank Maintenance

Daily tasks are quick, but they make a huge difference in long-term stability.

Daily Tasks (5–10 minutes)

• Visual livestock check: Look for rapid breathing, clamped fins, retracted polyps, or unusual behavior.
• Top off evaporated water: Use fresh RO/DI water, not saltwater, to keep salinity stable. An auto top-off system can automate this.
• Verify temperature: Confirm heaters and chillers are holding your target range (usually 76–79°F / 24–26°C).
• Quick equipment glance: Make sure pumps are running, lights are on schedule, and there are no leaks or odd noises.

Weekly Tasks

• Test key parameters: Check salinity, alkalinity, calcium, magnesium, and nitrate. Record results so you can spot trends.
• Glass and algae control: Use a magnetic scraper on the glass and gently brush rockwork if needed.
• Filter maintenance: Rinse filter socks or mechanical pads in tank water you’ve removed, not tap water.
• Light cleaning: Wipe salt creep from light fixtures, rims, and cords.

Pro tip: Combine your weekly tests and cleaning into one “reef night.” A consistent routine is more important than perfection.

For more help with water quality, see our guide on reef tank water parameters and how to keep them stable.

Monthly & Quarterly Deep Cleaning

Monthly Tasks

• Water change (10–20%): Match temperature and salinity, then siphon detritus from the sump and low-flow areas.
• Clean powerheads and pumps: Remove and soak in a mild vinegar solution, then scrub off calcium buildup.
• Skimmer maintenance: Clean the collection cup and neck thoroughly for better performance.
• Inspect cables and plumbing: Check for salt creep, brittle tubing, or loose fittings.

Every 3–6 Months

• Replace or recharge media: Swap out carbon, phosphate removers, and other chemical media as recommended.
• Service return pump: Deep clean impellers and housings to maintain flow and efficiency.
• Review your stocking and feeding: As corals and fish grow, adjust feeding and nutrient export to prevent excess nutrients.

If you’re just getting started, pairing this schedule with our beginner reef tank setup checklist makes it easier to build good habits from day one.

Building a Reef Tank Maintenance Schedule That Works

Every reef is different, so treat this schedule as a template, not a rulebook. A heavily stocked SPS system will need more frequent testing and water changes than a soft coral nano tank. The key is consistency:

• Set reminders on your phone for weekly tests and water changes.
• Keep a simple logbook or spreadsheet for parameters and maintenance.
• Change only one major thing at a time so you can see how the tank responds.

With a clear reef tank maintenance schedule and a bit of discipline, your system will reward you with stable parameters, vibrant coloration, and steady growth. Over time, you’ll fine-tune this routine to fit your specific livestock and equipment, turning maintenance from a chore into a satisfying part of the hobby. For more ongoing care ideas, check out our article on reef tank algae control and preventative strategies.