Free · iOS & Android

Track, automate,
and control your reef.

Log parameters, automate dosing and lighting, get AI-powered advice, and control everything that keeps your reef alive — all from one app.

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NextUpReef dashboard showing AI advice, Reef Score, and water parameters

Everything your reef needs

Log reef parameters

Log in seconds

Alk, Ca, Mg, NO3, PO4, salinity, pH, and more. Last values pre-filled. Color-coded against your targets.

Parameter trend charts

See the trends

Charts for every parameter with target range bands and water change markers. See exactly when things shifted.

Mantenance reminders

Stay on schedule

Water changes, filter socks, dosing, skimmer — set it once, get push notifications on time, every time.

AI-Powered

Your reef advisor
is already in the app.

Most reef apps just store your data — or export it so you can paste it into some other AI. NextUpReef builds the AI in, and it already knows your parameters, equipment, livestock, dosing, and full history. Not generic advice. Yours.

Water Advisor
A full AI chemistry analysis of your reef tank, refreshed every 24 hours. What’s dialed in, what needs attention, and the exact next steps.
Reef AI Chat
AI chat that knows your parameters and your livestock, so why your alk is dropping or whether a tang fits gets a real answer about your tank.
Stocking Advisor
AI compatibility, bioload, and aggression checks across your fish, corals, and inverts, then suggests what to add next.
AI Photo Logging
AI photo scan: point your camera at any test kit and it reads the values and logs them for you.
Ask Reef AI answering why pH drops at night
Automation & Control

Your reef runs itself.
Even when you’re not home.

Connect Shelly smart outlets and automate dosing, lighting, and equipment — all without leaving the app. Schedules live on the device and run 24/7 even when your phone is off.

Shelly Smart Outlets
Connect any Shelly Plug US Gen4 in minutes — no Shelly app needed. Tag it as a doser, heater, light, skimmer, or return pump and control it directly from NextUpReef.
Automated Dosing
Calibrate your pump once, set a daily mL target, pick a schedule. NextUpReef writes it directly to the outlet — doses run on time even if your internet goes down.
Schedules Run on the Device
No cloud, no server, no phone required. Your reef stays dosed and lit through power outages, router reboots, and travel.
NextUpReef automated dosing dashboard showing alkalinity progress ring and daily dose schedule
NextUpReef Shelly Smart Outlets screen showing doser outlet online with direct controls
Device Control

One app.
Every device.

See every outlet, sync your Apex, and control your equipment directly from the NextUpReef app. No switching between apps.

Lighting Automation
Set on/off times and ramp schedules per fixture. Link a Shelly outlet and NextUpReef pushes the schedule to the plug automatically.
Neptune Apex Integration
One-tap sync pulls pH, ORP, salinity, and temperature straight from your Apex into your parameter logs. No manual entry.
Control Center
Unified dashboard showing every outlet, its status, live power draw, and quick on/off controls — all in one place.
Shop compatible hardware →
My Reef

Everything in your tank,
in one place.

My Reef is the home base for everything in your tank — every fish, coral, and invert, every piece of gear, your dosing, your lighting, your monthly photos, and what it all cost. It is not a static list. It powers your scores, your reminders, and the AI that knows your tank.

Livestock, coral by coral
Track every fish, coral, and invert with catalog care data, health status, acquisition date, and what you paid. Frag or split a colony and keep the lineage.
Equipment and dosing
Log skimmer, pumps, reactors, ATO, and dosing products — brands, settings, flow rates, and cost — so your whole setup is documented in one place.
Monthly photo timeline
One photo per month builds a growth timeline you can scroll back through to see how far your reef has come.
Investment tracking
See what your reef actually costs — livestock, equipment, and lighting totaled up and broken down by category.
AI Stocking Advisor built in
Your livestock list feeds the Stocking Advisor, which flags compatibility and bioload issues and suggests what to add next.
See everything My Reef tracks →
NextUpReef My Reef page showing livestock, equipment, dosing, and total tank investment
Reef Hub community leaderboard showing tank rankings and scores
Community

Compare with
the best tanks.

The Reef Hub ranks public tanks by combined Reef and Stability score. See where you stand, then learn from the reefs at the top.

Reef Hub Leaderboard
See where your tank ranks. Browse top tanks — their params, salt mix, equipment, and lighting setups.
Reef Score and Stability Score
Two 0-100 scores grade your parameter health and how stable you keep alk, calcium, magnesium, and salinity over time.
Learn from real reefs
Every public tank is a real setup you can study — no theory, just what is actually working for other reefers.
New to Reefing?

Built for day one.
Grows with your reef.

The Tank Journey guides new reefers through every phase — from first fill to established reef. Step-by-step checklists, what to do next, and why it matters.

6-Phase Tank Journey
Tank Setup, cycling, first fish, first coral, and beyond. Always know where you are and what’s next.
Step-by-Step Checklists
Required and suggested tasks for each phase. Check them off as you go.
Built for Experienced Reefers Too
Advanced parameter tracking, stability scoring, and AI analysis scale with your experience level.
Tank Journey guide showing new reefer setup phases and checklists

Stop guessing.
Start tracking.

Free to download. No credit card required.

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Free to download · iOS & Android · 30-day Pro trial on every new account