IC-G1K
1K Gyre Flow Pump
Cross-flow gyre pump with controller for broad, gentle circulation. Key specs ~1000 GPH, controller incl. Tank rating Up...
$135.00In stock
Reef gear · run on our own tanks
Build a better reef.
Full-spectrum lighting, quiet flow, and the dosing to keep it stable — chosen by reefers. Start with a kit, build your own and save up to 15%, or tell us your tank and we'll spec the whole system.
12,000+TANKS EQUIPPED
4.9★2,800 REVIEWS
2-yrGEAR WARRANTY
Flow dialed in
75 gal · mixed reef · 2× powerhead
SHOP 01
Shop by what it does
The jobs every reef needs done — lighting, flow, filtration, dosing, automation. Every product page tells you what to buy it for, and when not to.
KITS 02 · START HERE
Don't know where to start? Start with a kit.
Complete reef setups we'd run ourselves — every part chosen to work together, bundled below retail. Take one as-is or customize it in the builder.
First tank
Nano Reef Starter
Everything a first reef needs, sized for a nano and nothing you'll outgrow in a month.
- Nano full-spectrum LED
- Nano powerhead
- Hang-on skimmer
- Inline heater
- ATO reservoir
$489Save 10%
View kit
Customize in the builder →
Most popularMost popular
Mixed Reef Complete
A full mixed-reef system that works together out of the box — light, flow, filtration and dosing.
- Full-spectrum LED bar
- DC return pump
- Gyre flow pump
- Cone skimmer
- 3-part doser
- Wi-Fi controller
$1,299Save 12%
View kit
Customize in the builder →
Seasoned · SPS
SPS Powerhouse
Built for color and growth on an SPS-dominant display — high PAR, heavy flow, tight stability.
- 2× full-spectrum LED bars
- 2× powerheads
- Large cone skimmer
- 3-part doser
- Controller + pH/ORP
- ATO reservoir
$1,899Save 15%
View kit
Customize in the builder →
Dial it in
Automation Starter
Add the brain to a tank you already run — scheduling, dosing and top-off that keep params steady.
- Wi-Fi controller
- Dosing pump
- ATO with sensors
- pH probe
- Leak/temperature sensor
$649Save 10%
View kit
Customize in the builder →
BUILD 03 · LIVE
Build your own. The more it does, the less it costs.
Mix and match the gear your reef needs — every combination here is one we'd run ourselves. The discount climbs as the build grows, and the reef meter fills with it.
System sizer · planning estimate
Tell us your tank. We'll spec the system.
Volume and what you're keeping, turned into a light count, flow target, return pump, skimmer, heater and the automation worth adding — no overbuying.
Estimate only — built from common reef rules of thumb. Want a second opinion? Tell us your tank and a reefer will dial it in.
Tell us the tank on the left and your spec appears here —
lighting, flow, filtration, heater and the automation worth adding.
SHOP 04
On the bench this month
Four picks we'd put on our own tanks — each note says who it's for, so you don't pay for more than you need.
IC-R2K
2K DC Return Pump
Quiet, controllable DC return pump for nano to mid systems. Key specs ~528 GPH, DC Tank rating Up...
$159.00In stock
IC-G2K
2K Gyre Flow Pump
Mid-size gyre pump with adjustable flow modes. Key specs ~2000 GPH, controller incl. Tank rating Up to 120g...
$194.00In stock
IC-R3K
3K DC Return Pump
Energy-efficient DC return pump with speed control. Key specs ~800 GPH, DC Tank rating Up to 120g Brand...
$199.00In stock
LOG 04
The Reef Log
Reef-keeping guides, tested gear notes, and honest how-tos — written from our own tanks and explained in plain language.
COUNSEL 06
"We'll talk you out of overbuying. Trust is the actual product."
— the rule every product page is written by
Read the buying guidesYOU SAY"First tank, 20 gallons, fish and a few softies."
WE SAYA nano LED, one small powerhead, a hang-on skimmer and a heater. Skip the doser for now — softies won't need it yet.
YOU SAY"120-gallon SPS build, chasing color and growth."
WE SAYTwo bars for even PAR, heavy random flow, a cone skimmer rated past 120, and a 3-part doser on a controller. Now the spend earns it.