# BlubHub – Aquarium tracker — Water values, trends & care

> Water values, trends & care (iPhone/iPad app by Geraedts Holding B.V..)

- Source: https://appshunter.io/ios/app/blubhub-aquarium-tracker/id6777744004 (this page in markdown: same URL + `.md`)
- Developer: [Geraedts Holding B.V.](https://appshunter.io/developer/6777191086)
- Category: Lifestyle, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 60 MB
- Languages: American English
- Released: 2026-09-13
- Data updated: 2026-09-14
- User reviews in markdown: https://appshunter.io/ios/app/blubhub-aquarium-tracker/id6777744004/reviews.md

## What is BlubHub?

BlubHub is the logbook for your aquarium. Track your water values, see at a glance whether everything is in balance, and get nudged before something becomes a problem. For saltwater and freshwater tanks alike.

WATER VALUES & TRENDS

• 19 parameters: pH, alkalinity, calcium, magnesium, nitrate, phosphate, salinity, temperature and more
• Test sessions with a timer per test — run several measurements at once
• Charts and history per value, with target bands per tank
• Custom safe bands per tank: a reef makes different demands than an Amazon biotope
• Instantly see what is drifting and in which direction

CARE ON A RHYTHM

• Reminders for water changes, testing, dosing, feeding and filter maintenance
• See what is due today, what is coming up and what is overdue
• Notes per tank, so your logbook is actually complete

YOUR AQUARIUM, COMPLETE

• Inhabitants with species, count and photos — backed by an extensive species catalog
• Tankmate matrix and suggestion wizard: see which species get along
• Equipment overview: filter, lighting, heater, wavemakers
• Multiple tanks side by side, salt and fresh mixed freely

PRIVACY FIRST

• Everything lives locally on your device — no account required
• No ads, no tracking, no third-party analytics
• Optional: back up your logbook online and share a tank with housemates — you choose what gets synced

BlubHub is available in English, Dutch, German, French, Italian and Spanish.

Privacy policy: https://blubhub.ohhi.nl/privacy


## Version history (last 1 release)

### 1.0 — 2026-09-13

No release notes.

## More apps by Geraedts Holding B.V.

- [Ohhi - Private photo sharing](https://appshunter.io/ios/app/ohhi-private-photo-sharing/id6777190874)

All apps by Geraedts Holding B.V.: https://appshunter.io/developer/6777191086

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-14.*