BUILT BY AQUARISTS, FOR AQUARISTS

Aquariums deserve better tools than spreadsheets.

The aquarium tracker built for reefers, aquascapers, and breeders who take it seriously. Track every parameter, catch problems early, and trace every shrimp from line to clutch.

Be first in line. 500 lifetime spots, $199 forever — reserved for our first waitlist members.

Built where the fish are. Used by hobbyists worldwide.

Built because every other option is broken.

The 2012 app problem

Aquarimate works, but looks ten years old and can't keep up with modern reefkeeping.

The spreadsheet problem

When the best aquarist tools are a Google Sheet and a notebook, the bar is on the floor.

The forgetting problem

Parameters drift. Maintenance slips. Fish die from problems you would have caught if you'd been looking.

I'm shocked by how bad the options are.
— Reef2Reef thread, Feb 2026

Photograph your strip. Parameters log themselves.

Hold up your test strip. Tap. Your pH, ammonia, nitrite, nitrate, GH, KH log themselves — checked against the brand's reference chart and saved with your tank's history. Works with API, Tetra, Salifert, JBL, and more.

Always reviewable before save. Your data stays yours.

Scanning…
pH
Ammonia
Nitrite
Nitrate
GH
KH

Built for the way you actually use your tanks.

Tag your tanks. Build your dashboard. Save filtered views. Make the app fit your aquarium discipline — not the other way around.

stable
Crystal Reds · 10g
stable
Reef Display · 90g
stable
Planted Iwagumi · 20g
Tank Insights

Your alkalinity has dropped 0.4 dKH over the last 12 days. Common causes: coral consumption increase, dosing schedule drift. Worth checking your reactor.

Breeding

Berried female detected — 14 days est.

FOR BREEDERS

Track every fry from line to clutch.

The only aquarium tracker with real breeding genetics built in. Trace your lineage across generations, predict crosses, grade your offspring, and never lose track of which line a juvenile came from.

Lineage trees
Visual family trees across generations. Click any individual to see ancestry and descendants.
Cross predictor
Pair two shrimp, see probable offspring patterns and grades. Built for Caridina genetics, expanding to fish.
Grading & sale logs
Photograph and grade offspring (SSS, SS, S, A, B). Track sale price and buyer per individual.
Inbreeding alerts
Smart warnings when proposed pairs share too much ancestry.
Built for Caridina shrimp breeders. Coming soon for fish breeders.
MosuraCRS Gen 0HinoCRS Gen 0SSSF1.1SSF1.2SSF1.3SF1.4F2.1F2.2F0F1F2
Berried Female
F1.1 detected — 14 days est.

Everything serious aquarists actually need.

Strip Scan

Photograph any test strip, parameters auto-log.

Drift Watch

Smart trend analysis catches problems before they hit critical.

Health Check

Photo your sick fish or shrimp, get a likely diagnosis and treatment direction.

Custom Parameters

Track substrate age, dosing batches, anything specific to your tank.

Smart Tags

Auto-applied tags surface what needs attention. Filter by tag for any view.

Offline-First

Test at the tank, sync later. No wifi required.

Photo Timeline

Watch your tank evolve over months and years.

Your Data, Yours

Export anytime. We don't sell your tank data. Ever.

Whatever's in your tank, Blissfish keeps track.

Reef keepersAquascapersShrimp breedersFreshwater hobbyistsMarine breedersSnail keepersSpecialty tanks

Three ways to use Blissfish.

Free Forever

$0
  • 1 tank
  • Manual parameter entry
  • Basic reminders
  • 3 lifetime Strip Scans
  • 3 lifetime Health Scans
Most Popular

Pro

$69/year

or $8.99/month (~$5.75/mo annual)

  • Unlimited tanks
  • All Strip Scans + Health Scans
  • Breeding genetics module
  • Custom parameters & dashboards
  • Smart tags & saved views
  • Photo timelines
  • Expense tracking
Limited

Founding Aquarist

$199 one-time
  • Everything in Pro, forever
  • “Founding Aquarist” badge in-app
  • Direct line for feature requests

500 of 500 spots remaining

Michaela, founder of Blissfish

Why Blissfish exists.

Hi, I'm Michaela. I've kept tanks for over a decade — bettas, Crystal Reds, planted scapes. I started Blissfish because I was tired of tracking my Caridina lineage in a notebook and watching parameter drift in my reef tank that I would have caught with better tools. This is the app I wanted to exist. If you've ever stood in front of your tank with a test strip in one hand and a spreadsheet in the other, this is for you.

Read more on Blissfish.blog →

Questions, answered.

We're aiming for early 2026. Waitlist members get first access and lifetime deal priority.

We've trained against the major brands' reference charts (API, Tetra, Salifert, JBL) and require your confirmation before saving any reading. Treat it as assisted entry — fast input that you verify.

Yes. Every system parameter is supported, and Pro users can add unlimited custom parameters with their own alert thresholds.

Web at launch. iOS and Android apps shortly after. Your data syncs across all of them.

Yes. Pay $199 once, get every Pro feature for as long as Blissfish exists. Capped at 500 customers. Once they're gone, we won't offer it again.

Yes. Your tank data is yours. We don't sell it, share it, or use it for ads. Export anytime.

Aquarimate is great for what it does, but it's a decade old and missing modern essentials: strip scanning, photo diagnostics, breeding genetics, custom parameters, modern UI. Think of Blissfish as what aquarium tracking should look like in 2026.

500 lifetime spots. Be among the first to know.

0 of 500 lifetime spots reserved