Aquarium Manager: Fishkeeping

Aquarium Manager is a fish keeping companion that turns tank care into a simple routine. Log every setup, keep a water test history, check species compatibility before you buy, and let a cycling coach tell you when it's safe to add new fish. It works for a single freshwater community tank, a planted nano, a saltwater aquarium or a reef tank.

WATER TEST LOG THAT SHOWS TRENDS
Water chemistry is where most setups go wrong. Record ammonia, nitrite, nitrate, pH and more, and Aquarium Manager charts every reading over time so a spike or slow drift stands out long before it becomes an algae bloom or stressed livestock. Leave blank anything you didn't test, and look back weeks or months whenever something feels off. All your water tests stay in one log instead of scattered notes.

NITROGEN CYCLE COACH (PRO)
Most new setups fail for one reason: livestock goes in before the tank has finished cycling. Mark a tank as new and the cycling coach reads your ammonia, nitrite and nitrate trend to show how far the nitrogen cycle has come and whether it's ready for its first inhabitants.

FISH DISEASE ID AND HEALTH HELP
• Disease photo ID (Pro) – add a photo of a sick fish plus the symptoms you've noticed, such as white spots, clamped fins or gasping at the surface, and get an informational list of possible conditions
• AI diagnosis – describe what you see and get hobby-level troubleshooting for common problems (one free diagnosis each week, unlimited with Pro)
Aquarium Manager is not a fish disease identifier that replaces a vet. It gives you a starting point, and for a sick or valuable animal you should always consult an aquatic veterinarian.

SPECIES GUIDE AND COMPATIBILITY CHECK
• Species guide – care sheets for common freshwater, saltwater and brackish species, from tank size to feeding and temperament
• Compatibility check – see whether a new species fits the community you already keep before checkout, not after (three free checks, unlimited with Pro)

AQUARIUM MAINTENANCE AND STOCK LOG
• Maintenance schedule – water changes, filter cleans and test reminders so routine care never slips
• Stock log – a running inventory of every animal, plant and invertebrate you keep
• Stock audit (Pro) – a full review of what lives where
• History – every reading and task in one timeline per setup

WHY KEEPERS USE IT
• Built around the two things new hobbyists get wrong most: cycling and chemistry
• One aquarium tracker for all your tanks – no spreadsheets or sticky notes on the stand
• Photo-based help gives you a place to start when fish health looks wrong
• Reminders are scheduled, not just remembered
• Works for beginners and for experienced keepers running a whole room of tanks

WHO IT'S FOR
• New hobbyists cycling a first fish tank and unsure when to add livestock
• Keepers juggling several setups who want every water test in one place
• Reef tank and planted tank owners who need to catch chemistry drift early
• Anyone who has lost livestock to an uncycled setup and never wants that again

FREE AND PRO
Adding tanks, logging water tests, the species guide and maintenance reminders are free. Pro unlocks the cycling coach, disease photo ID, full history and trend analytics, the full stock audit, and unlimited compatibility checks and AI diagnoses.

Aquarium Manager offers informational hobby guidance and is not a substitute for veterinary care. For day-to-day fish care, it's the log, the cycling coach and the compatibility check that keep your aquarium healthy between water changes.

Privacy Policy
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Recent changes:
• Refreshed look and smoother experience across the app
• Improved translations — the app now feels at home in your language

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