Finlog: Aquarium Log & Tracker

Keep your aquarium healthy in a few taps a day. Log water tests, feeding and water changes, check a sick fish with AI, and ask aquarists worldwide. Then unwind in the Nano Tank and raise your own lifelike 3D fish.

◆ Every tank in one place
Freshwater, planted, shrimp, betta, goldfish, cichlid, marine and reef tanks, and ponds. Add your fish, shrimp, snails, plants and corals, and see how many days each tank has been running.

◆ Water tests you can read at a glance
Temperature, pH, ammonia, nitrite, nitrate, GH, KH, TDS and salinity. Each value is colored against an ideal range for your tank type, and charts show the last 7, 30 or 90 days.

◆ Never miss feeding or a water change
Log today's feeding with one tap and keep your streak going. Reminders tell you when to feed and when a water change is due. Record water changes, filter cleaning, dosing, glass and substrate work with notes.

◆ A photo diary of your tank
Keep photos for each tank and look back at how it has grown since the day you set it up.

◆ AI tank check
Take a photo of a fish, algae or cloudy water. AI tells you what it sees, what it noticed and the first steps to take, using your latest water test. One free check a day. This is general information, not a veterinary diagnosis.

◆ The Nano Tank: raise a lifelike 3D fish
A bonus tank in the Home tab, just for fun and separate from your records. Choose your first fish from three lifelike species: a Betta, a Ryukin goldfish and a Neon tetra, give it snacks every day and watch it grow little by little. When it grows up, an egg arrives and a second and third fish join (up to 3). Logging a feeding for your real tank earns snack rewards. Spin and zoom to watch from any angle while the plants and bubbles sway, or turn your phone sideways for a wide view. It never changes your real records. Free, with no ads in the Nano Tank.

◆ Everyone's Tanks
Share a photo of your tank, send stamps to other tanks, join the weekly theme and see aquarists around the world on the map. No followers, no comments, no numbers to compare.

◆ Ask other aquarists
Ask about water, fish health, plants or gear. Aquarists around the world answer, and posts are translated into your language. If a genuine question gets no reply within a day, AI shares some pointers.

◆ A safe community
Everyone agrees to the community guidelines before joining. Every photo is checked by AI before it is shared, and you can report any post and block any user at any time.

◆ Finlog Premium (one-time purchase)
No ads, plenty of AI tank checks and instant AI answers on the board. No subscription.

◆ Made for daily use
No sign-up needed. Your records stay on your device. Celsius or Fahrenheit, light and dark mode.

How to start:
1. Add your tank and choose its type.
2. Log feeding and a water test from Home.
3. Open the Nano Tank and choose your first fish.

Finlog is a simple fishkeeping journal and aquarium tracker for every kind of tank, from a nano shrimp aquascape to a reef, with a bonus 3D Nano Tank where you raise virtual fish like in an aquarium game.

Start your aquarium log today with Finlog. Your first 3D fish is waiting in the Nano Tank.

Privacy Policy: https://keik.co.jp/finlog/privacy-en.html

Recent changes:
• Community posts are now checked on our server. While a check is in progress, your post shows "Under review" only to you
• Minor fixes and improvements