Aquarium journal

Aquarium journal app — photos, parameters and progress.

Document every step of your marine aquarium: photos, parameters, maintenance, livestock changes, problems and solutions. The history that tells your journey.

ReefFlow — marine aquarium app screenshot — Aquarium journal app — photos, parameters and progress.

A reef tank without a journal is a journey without a map.

Reefers know it: what worked in January can stop working in May. Without a journal, it is impossible to know what changed. Which day you swapped lights? When you switched salt brand? How long has that Acropora been in STN? Why did KH drop in three days?

The Aquarium Journal in ReefFlow centralizes those answers. Each entry can have photos, text, parameters and tags (water change, dosing, problem, addition, change). The history is chronological and searchable — when something shifts, the journal has the answer.

Because the journal cross-references parameters and maintenance, you can see "when this entry was written, KH was 8.2 and the last water change was 5 days prior". The missing record that turns a hobbyist into a reefer.

Who it is for

  • Reefers documenting tank progress in photos
  • People who want to understand what worked and what did not
  • Anyone tracking problems (RTN, dinos, cyano) and fixes
  • Long-term keepers who want history
  • Reefers sharing content on social media
  • People who want before/after for every coral
ReefFlow — marine aquarium app screenshot — Photos

Photos with context

Each entry takes multiple photos. Compare today vs. 6 months ago in seconds.

ReefFlow — marine aquarium app screenshot — Tags

Tags and categories

Water change, dosing, problem, addition, change. Filter the timeline by what matters.

ReefFlow — marine aquarium app screenshot — Cross-referenced

Cross-referenced parameters

Each entry shows the day's parameters. Useful to explain what the tank was experiencing.

ReefFlow — marine aquarium app screenshot — Timeline

Timeline view

See progress chronologically. Filter by tank, tag or date.

ReefFlow — marine aquarium app screenshot — Long history

Long history

No time limit. 5-year-old tank? It is all there.

ReefFlow — marine aquarium app screenshot — Notes

Rich notes

Free text, lists, bullets. Document anything — not a dumb notebook.

Start telling the story of your tank today.

Free journal in ReefFlow. No photo cap on the free plan.

FAQ — aquarium journal

Is there a photo limit?

No hard cap on the free plan (reasonable limits to prevent abuse). Document progress without worrying about quotas.

Is the journal private?

Yes. Entries are private by default. Optional sharing to social media via ShareStudio.

Can I cross-reference an entry with the day's parameters?

Yes. Each entry shows nearest-date parameters automatically.

Can I export the journal?

Export is on the roadmap. Content stays complete inside the app today.

Multiple aquariums?

Yes. Each tank has its own journal. Filter by tank in the global view.

Can I edit an old entry?

Yes. Free editing, no time limit.