Reef Notes: Saltwater Tank

New: your fish in the catalog. Pro members can add a photo of any species from their own tank, and everyone can flag an entry that looks wrong. We work through the list.

Reef Notes is the logbook for saltwater and reef aquarium keepers - everything you record about your tank in one place, plus AI that actually helps.

TRACK YOUR TANK

• Water parameters with trend charts: salinity, temperature, pH, KH, calcium, magnesium, ammonia, nitrite, nitrate, phosphate, plus your own custom parameters
• Livestock list that warns you about compatibility when you add a new fish or coral
• Maintenance schedule with reminders, feeding log, dosing log and running cost
• Photo timeline so you can see how the tank has grown

AI PHOTO TOOLS

• Species ID: point your camera at a fish or coral and find out what it is
• Disease diagnosis: photograph a sick fish and narrow down what is wrong
• Test-kit reading: photograph your color card and get the number, calibrated to your own kit
• Aquascape and lighting advice from a photo of your tank
• Dream Tank: describe the tank you want and get an AI concept render

KNOW WHAT TO DO

• 3,000+ species with water requirements, temperament and reef-safe notes
• 180+ care articles, from cycling a new tank to chasing algae
• A 30-day cycling plan that tells you what to do each day, from empty tank to first fish
• Disease library with human-reviewed treatment plans
• Smart water alerts that spot a bad trend before it becomes a problem

SHARE YOUR TANK Post a photo to Fish Friends and see what other people are keeping. Every post is reviewed by a person before it appears.

YOUR DATA STAYS YOURS Your tanks, tests and photos live in your own private iCloud database and sync across your devices. We never receive them. No ads, no tracking, no third-party analytics.

A NOTE ON MEDICATION Reef Notes deliberately never generates dosages or concentrations. Getting those wrong kills livestock. For treatment we point you to the human-reviewed entries in the Disease library and to the instructions on the product you actually own.

REEF NOTES PRO The logbook, species reference and articles are free. Reef Notes Pro unlocks the AI photo tools, cloud sync, unlimited photo timeline and more.

Reef Notes Pro is 19.99 USD per year and renews automatically. Payment is charged to your Apple Account at confirmation of purchase. Your subscription renews unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the period ends. You can manage or cancel your subscription in Settings on your device.

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