⚡ PRE-ORDER WAITLIST OPEN

Control your whole reef. One app. One Hub.

The NextUpReef Hub brings your probes, equipment, and alerts into the app you already use — monitoring, trending, and AI advice, all in real time.

Works on any reef tank — a brand-new setup or alongside a controller you already own.

No spam. We'll email once when pre-orders open. Unsubscribe anytime.

Want to automate your reef today? Shop Shelly smart outlets →— works with NextUpReef right now, no Hub needed.

One-time hardware purchase. The app runs on NextUpReef Pro — $4.99/month, or save with a year up front.

Start where it makes sense for your tank

Whether you run an Apex today or you're starting fresh, there's a way in — and you can grow from there.

MOST POPULAR
NextUpReef Hub Complete
$379one-time
Everything to monitor & automate
The Hub device, a lab-grade pH probe, a temperature monitor, and two smart plugs — ready to monitor and control a heater, dosing pump, return pump, or anything else you want automated.
LOWEST COST
NextUpReef Hub
$179one-time
The standalone Hub device
The Hub on its own — perfect if you already have probes or a Neptune Apex. Connect it and your live readings flow straight into NextUpReef, where you get an AI Reef Advisor, Reef and Stability Scores, drift detection, and the Reef Hub community. Add probes and smart plugs whenever you want.
GROW ANYTIME
Add-Ons
from $15each
Expand as your tank grows
Add more smart plugs, leak sensors, and accessories whenever you want. Start small and build out over time — everything new appears in the app automatically.

A small piece of hardware that runs NextUpReef

The NextUpReef Hub is a dedicated device — a small box that sits by your tank, plugs into power, and joins your home Wi-Fi. It runs the NextUpReef software, built specifically for reef monitoring and control.

Unlike a phone app that only works when your phone is on, the Hub runs on its own, around the clock. It continuously reads your probes, talks to your smart plugs, and keeps your tank data flowing — whether your phone is in your pocket, at work, or dead on the nightstand.

It is hardware
A physical device you own — not just an app or a cloud login.
Plug in & connect
Power it, join it to Wi-Fi, and pair it in the NextUpReef app.
Always on
Runs 24/7 on its own, independent of your phone being nearby.

Built on proven, industry-standard hardware (Raspberry Pi 5) — reliable, well-supported, and not a locked-down black box.

Your Apex collects the data. NextUpReef makes sense of it.

The Apex is great at reading your tank. Where it stops short is helping you act on what it sees — that's what NextUpReef adds.

AI Reef Advisor
Reviews your parameters, trends, equipment, livestock, and dosing every day and hands you a prioritized list of what to check — something the Apex app simply doesn't do.
Reef & Stability Scores
Two simple 0–100 scores grade your tank's health and consistency at a glance. No more reading raw graphs to know if you're on track.
Drift detection
NextUpReef watches for slow swings in alkalinity, calcium, and salinity and flags them early — before they stress your corals.
Ask Reef AI
Chat with an AI that already knows your tank — its size, livestock, parameters, and history — for answers specific to your reef.
Alerts that matter
Clear, plain-language notifications when a parameter goes out of range — not a wall of raw data to decode.
Reef Hub community
See how your tank compares to similar reefs, climb the leaderboard, and learn from other reefers. The Apex app has nothing like it.

Hub Complete vs. a control-capable Apex

To actually control equipment — not just monitor it — the closest Neptune system is the A3 Apex with its EnergyBar. Here is how the two compare.

 
NEXTUPREEF
HUB COMPLETE
A3 APEX
Price
$379
$669.99
pH probe
Lab-grade, included
Included
Temperature probe
Included
Included
Equipment control
2 smart plugs included
EnergyBar (8 outlets)
Leak detection
Available add-on
Included
Expandable
Smart plugs & sensors
Apex modules
AI Reef Advisor
Yes
No
Reef & Stability Scores
Yes
No
Community & leaderboard
Yes
No
App
NextUpReef
Apex Fusion
The honest comparison: Neptune's cheaper A3 Apex Jr ($319.99) is monitor-only — it can't switch a heater or dosing pump on and off. For real equipment control you need the A3 Apex at $669.99. The Hub Complete does both monitoring and control for $379, and adds AI advice the Apex app doesn't offer.

Comparison based on pricing and specifications publicly listed by retailers as of May 2026; details may change — verify current information with the manufacturer. Neptune Systems® and Apex® are trademarks of Neptune Systems. NextUpReef is independent and is not affiliated with, endorsed by, or sponsored by Neptune Systems.

BUILT TO KEEP RUNNING

Your tank doesn't depend on the cloud

The smart plugs store their schedules locally, right on the device. If your internet drops, your phone dies, or the cloud is unreachable, your heater and dosing pump keep running exactly as scheduled. The NextUpReef app is how you watch over your reef and get alerts — it is never a single point of failure for your tank's survival.

Be first in line

Drop your email and we'll let you know the day pre-orders open. A handful of early reefers will get devices at cost in exchange for setup feedback.

No spam. We'll email once when pre-orders open. Unsubscribe anytime.

Frequently asked

What is the NextUpReef Hub?

The NextUpReef Hub is a small device that connects your reef tank to the NextUpReef app. It brings live probe readings, smart-plug control, and alerts together in one place — monitoring, trending, and the AI Reef Advisor you already use, now driven by real-time data.

What hardware does the Hub run on?

The Hub is a dedicated device built on a Raspberry Pi 5 — proven, industry-standard hardware — running the NextUpReef software made specifically for reef monitoring and control. It plugs into power, joins your home Wi-Fi, and runs on its own around the clock, independent of your phone.

I already have a Neptune Apex. Can the Hub work with it?

Yes — that's exactly what the standalone Hub is for. It connects to your existing Apex and streams your live pH, temperature, Trident, and other readings straight into the NextUpReef app in real time. You keep your Apex; you just get a better app experience on top of it. This is the lowest-cost way to start.

How much does the NextUpReef Hub cost?

There are two options. The NextUpReef Hub is $179 — the standalone Hub device, ideal if you already have probes or a Neptune Apex. The NextUpReef Hub Complete is $379 and adds a lab-grade pH probe, a temperature monitor, and two smart plugs. Both are one-time hardware purchases. The app runs on NextUpReef Pro at $4.99/month, with a discount for paying yearly.

What comes in the NextUpReef Hub Complete?

The $379 NextUpReef Hub Complete includes the Hub device, a lab-grade pH probe, a temperature monitor, and two smart plugs. The smart plugs let you monitor and control equipment like a heater, dosing pump, return pump, or anything else you want automated — all from the app.

Can I add more later?

Yes. You can add more smart plugs, leak sensors, and other accessories any time. Start with what you need and expand as your tank grows — everything new shows up in the NextUpReef app automatically.

What happens if my power, Wi-Fi, or phone goes down?

Your tank keeps running. The smart plugs store their schedules locally on the device itself — so if the internet drops, your phone dies, or the cloud is unreachable, your heater and dosing pump keep running exactly as scheduled. The cloud is there for you to monitor; it is never a single point of failure for your tank.

Do I need a NextUpReef Pro subscription?

NextUpReef Pro unlocks the AI Reef Advisor, advanced analytics, and automation features. Pro is $4.99/month or $39.99/year. Basic monitoring works on the free tier; Pro is where the Hub really shines.

When will the Hub ship?

We're finalizing hardware now and opening a pre-order waitlist. Early reefers on the list get first pick, and a few will receive devices at cost in exchange for setup feedback. Join the waitlist to be notified the moment pre-orders open.