AquaLens: Aquarium Log Tracker

Dave Scotland

In-app purchases

About this app

Stop guessing what changed in your aquarium. AquaLens is an aquarium app that identifies fish, scans water tests, and turns everyday tank care into a clear history of water quality, dosing, maintenance, and health.

Built for freshwater, saltwater, planted, reef, shrimp, breeding, quarantine, and multi-tank setups, this fish tank app combines an aquarium tracker, water test scanner, journal, care reminders, and tank-aware guidance.

IDENTIFY FISH, PLANTS, CORAL, AND MORE
Take a photo to identify fish, aquatic plants, coral, algae, shrimp, snails, and other aquarium life. Explore care requirements, preferred water parameters, diet, temperament, and compatibility before adding a new resident. AquaLens shows when an identification is uncertain instead of forcing an answer.

SCAN WATER TESTS AND TRACK PARAMETERS
Photograph supported test strips or liquid test kits, or scan supported digital testers with OCR. Review every reading before it saves, then add it directly to your aquarium journal. Track pH, ammonia, nitrite, nitrate, phosphate, temperature, salinity, alkalinity, calcium, magnesium, and more.

KEEP A FISH TANK LOG THAT EXPLAINS WHAT CHANGED
Record water changes, feeding, dosing, aquarium maintenance, livestock, notes, and photos in one timeline. When a parameter shifts, look back at what happened around it instead of relying on memory.

SEE AQUARIUM HEALTH TRENDS
Turn water tests into clear charts over time. Compare parameter changes with new livestock, dosing, and maintenance to spot patterns earlier. With AquaLens Pro, predictive alerts use your own tank history to flag movement toward unsafe ranges while the fix may still be small.

PLAN STOCKING BEFORE YOU BUY
Build an aquarium stocking wishlist and use the fish compatibility checker to compare adult size, temperature, water needs, temperament, group size, and estimated bioload. Plan your aquarium before spending money or bringing home a resident that does not fit.

STAY AHEAD OF TANK CARE
Create reminders for water tests, water changes, feeding, filter cleaning, dosing, medication cycles, and custom maintenance. Completed tasks can be added to your journal so your care routine stays useful, not just remembered.

FRESHWATER, SALTWATER, PLANTED, AND REEF
Manage multiple aquariums without mixing their histories. Follow cycling guidance for a new fish tank, use planted aquarium tools for freshwater setups, and track salinity, alkalinity, calcium, magnesium, dosing, ICP results, and coral placement for reef tanks.

GUIDANCE THAT KNOWS YOUR TANK
Ask AquaGuide aquarium questions. With Pro, answers can use your selected tank's parameters, residents, equipment, and history instead of offering generic advice. Visual health tools can flag possible concerns and provide educational next steps. AquaLens does not provide veterinary diagnosis or treatment. Consult a qualified aquatic veterinarian for medical concerns.

A 1,750-SPECIES LIBRARY AND PRACTICAL TOOLS
Explore care information for fish, plants, corals, and invertebrates. Use calculators for dosing, water changes, salinity, filtration, lighting, and running costs. Keep core tank records available offline and sync supported data across devices and the web when signed in.

FREE TO START
Core aquarium tracking, fish tank logging, residents, water tests, trend charts, calculators, and the web dashboard are free. Optional AquaLens Pro adds unlimited AI identification and water test scanning, predictive alerts, tank-aware AquaGuide analysis, ICP imports, and advanced labs.

Download AquaLens and turn everyday aquarium care into a history you can actually use.

Ratings and reviews

Awesome app always developing. I was one of the Beta testers for this app at the beginning. Dave is super responsive to adding features people would like to see and helping when a bug is found. It has been really cool to see this app grow and create an awesome resource for the fishkeeping community. I really believe in this project for helping manage fishkeeping and expenses, and I can't recommend it enough!

its great and the dev are very active loving it

What’s new

This update makes AquaLens more connected, reliable and easier to use.

• Breeding Lab keeps fry counts synchronised with Residents.
• Open matching Library profiles from resident details and find more relevant results.
• Safer cross-device cloud syncing and conflict handling.
• Compatibility analysis now respects gallons or litres.
• Clearer scan, analysis and purchase-recovery messages.
• Fixed guide numbering and stale notification badges.

Thanks for using AquaLens!