Introduction: Why a Reef Tank Checklist Is a Game-Changer

Reef tanks are beautiful, complex ecosystems — but they can be intimidating without guidance. Whether you’re starting your first saltwater tank or refining an existing one, this reef tank checklist will keep you organized and on track for long-term success.

✅ Reef Tank Equipment Checklist

• Aquarium (minimum 30 gallons recommended)
• Sump or AIO filtration system
• Protein skimmer
• Return pump
• Wave makers or powerheads
• Heater and thermometer
• High-output LED lighting (reef-rated)
• Refractometer (for measuring salinity)
• RO/DI water source or filter
• Auto top-off system (optional but helpful)

✅ Saltwater Setup Supplies

• Reef salt mix
• Substrate (aragonite sand)
• Live rock or dry rock
• Test kits: ammonia, nitrite, nitrate, pH, calcium, alkalinity, magnesium
• Water conditioner (for emergencies)
• Buckets, tubing, and siphon hose

✅ Water Parameters for Reef Tanks

• Salinity: 1.025
• Temperature: 76–78°F
• Ammonia/Nitrite: 0 ppm
• Nitrate: < 10 ppm
• pH: 8.0–8.4
• Alkalinity: 8–12 dKH
• Calcium: 400–450 ppm
• Magnesium: 1250–1350 ppm

✅ Livestock Checklist (Start Slowly!)

• Clean-up crew (snails, hermits)
• Hardy beginner corals (zoanthids, mushrooms, leathers)
• Peaceful saltwater fish (clownfish, firefish, gobies)
• Avoid mixing incompatible species

✅ Weekly Maintenance Checklist

• Test water parameters
• Top off with RO/DI water
• Clean skimmer cup and filter socks
• Remove detritus and check for algae
• Inspect livestock for signs of disease or stress

✅ Monthly Maintenance Checklist

• Clean powerheads and pumps
• Recalibrate refractometer
• Replace carbon or phosphate remover (if used)
• Do a 10–20% water change
• Rinse or replace filter media as needed

Final Thoughts

A reef tank checklist simplifies the complexity of saltwater aquariums. Stick to the plan, monitor your parameters, and grow your system slowly. The result? A thriving, colorful reef that rewards your patience and care.

Download the printable version to keep on hand and share with other reefkeepers!