🎉 7-day free trial — no card required

Keep your fish thriving,
not just surviving

Simple enough to pick up in minutes. Powerful enough to run a fish shop. Fintastic gives every aquarist — beginner or expert — the tools to keep great water.

Start your free trial → See pricing

7 days free · No credit card · Cancel any time

🪸 Ian's Tank
Last reading: today at 09:15
pH
7.2
target 6.8–7.6
Safe ✓
Ammonia
0.0
mg/L
Safe ✓
Nitrite
0.0
mg/L
Safe ✓
Nitrate
20
mg/L
Monitor
💧 25% water change 2 days ago
🧪 Added Seachem Prime 2 days ago
🐠 Ian — Betta — health good resident

As simple or as powerful
as you need it to be

Fintastic is commercial-grade monitoring that you can use at home. Start with the basics and unlock more as your confidence grows — the app scales with you.

🏠

Home aquarists

Log your weekly test results, get instant safe/warn/danger feedback, and build up a full water history without any technical knowledge. Fintastic makes good fishkeeping feel effortless.

🏪

Fish shops & serious collectors

The same tools professionals use — multi-tank dashboards, livestock management, event logs and trend charts — all from one account. Commercial-grade record keeping, at a hobbyist price.

Everything you need,
nothing you don't

The same tools used by professionals — presented simply enough for anyone to pick up on day one.

🧪

Full parameter tracking

Log pH, ammonia, nitrite, nitrate, copper, hardness, alkalinity, chlorine and more. Get instant safe/warn/danger feedback on every reading.

📈

Charts & history

See trends over time with clear, readable charts. Spot spikes before they become disasters and share history with your vet or supplier.

🐟

Livestock management

Track every fish, shrimp and snail — species, quantity, health status and individual names. Know exactly who's in each tank.

💧

Event logging

Record water changes, additives, treatments and tank milestones. Build a complete maintenance diary automatically.

🔄

Cycle monitoring

Dedicated nitrogen cycle tracking with a guided view showing where you are in the process — ideal for new tank setups.

🗂️

Multiple tanks

Manage all your tanks from one account with a quick-switch tab bar. Each tank has its own parameters, livestock and history — from one nano tank to a whole shop floor.

Up and running in minutes

No complicated setup. Just sign up and start logging.

1

Create your account

Sign up in seconds — no credit card needed. Your 7-day free trial starts immediately.

2

Add your tanks

Set up each tank with a name and size. Add as many as your plan allows — we'll keep them all organised.

3

Log your first test

Enter your water test results and get instant feedback. Build up a history over time and never lose a reading again.

Simple, honest pricing

No subscriptions, no tricks — one annual fee that covers everything.

Enthusiast
£40/yr
Up to 50 tanks
  • Everything in Hobbyist
  • Up to 50 tanks
  • Ideal for serious collectors
  • Priority support
Start free trial →
Professional
£60/yr
Up to 100 tanks
  • Everything in Enthusiast
  • Up to 100 tanks
  • Perfect for fish shops
  • Priority support
Start free trial →

All plans include a 7-day free trial. Prices include VAT. Annual billing.

Your fish will thank you 🐠

Join Fintastic and take the guesswork out of aquarium water chemistry.

Start your free trial →

7 days free · No credit card · Takes 30 seconds