Aquarium IQ
Install
for freshwater tanks, one app, every tank

Stop guessing
what your water
is telling you.

Aquarium IQ checks every test against the real needs of your exact fish, shrimp, and plants — then tells you what's off and what to do about it. Feeding, maintenance, and breeding stay on schedule too.

Free to use · Installs like an app, no store needed · Built by a fishkeeper
Good evening
4 tanks · 110+ species on file
4Tanks
2Watch
12dStreak
Community 20GGood
Last tested this morning
Shrimp BowlWatch
GH trending low for Crystal Reds
Care Hub — Today
Feed Community 20G
Water test — Shrimp Bowl
Trim Monstera cutting
Dashboard
Tanks
Care Hub
Guides

Everything the tank needs, nothing it doesn't

Built one real feature at a time, for real tanks — not a roadmap.

Water quality engine

Every reading is checked against your tank's actual livestock, not a generic chart, with a plain-language note on what to do if something's off.

Care Hub

Feeding, maintenance, and testing reminders that know what's actually overdue, and let you clear it in one tap.

Species library

Over 110 fish, invertebrate, and plant care guides built in, used automatically to tailor every parameter range.

Breeding tools

Spawn logs, milestone reminders, and lineage-linked sales — built for people who breed on purpose, not by accident.

It doesn't just log the number

Tap a parameter to see how the same reading means something different depending on what's actually in the tank.

Same three tanks, same test kit. The number alone doesn't tell you whether to act — what's swimming in the tank does.

More than one tank, more than one person

Every tank, one app

Track a 2.5-gallon quarantine box next to a planted 55-gallon, with no separate setup for either.

Share a tank

Invite family to log a feeding or a water test on one specific tank, without handing over the whole account.

Built by a fishkeeper

Every feature shipped because a real tank needed it — not because a roadmap said so.

Getting it onto your phone

Aquarium IQ installs straight from the browser — no app store, no account to create first.

  1. Open aquariumiq.net in Chrome (Android) or Safari (iPhone). Other browsers can view the site, but installing needs one of these two.

  2. Open the browser menu and look for Install. On Android, Chrome sometimes labels this "Install and create shortcut" — that's the same option.

  3. Open it from your home screen from then on. Updates roll out on their own the next time you open it.