PRE-BUILT KIT · REEF · CORE

Waterbox MARINE X 90 Reef System

A full sump-driven reef on the MARINE X 90.3 — rimless ultra-clear glass, glass overflow and a real sump, with the skimmer, return and flow sized to match.

$3,396.00$3,995.00Save 15%
Customize in the Build Studio

Priced 15% below the sum of its parts — the same as our top bundle tier, pre-matched and ready to run.

Waterbox MARINE X 90 Reef System

Why this kit

MARINE X 90.3 rimless system: glass overflow, included sump and plumbing.
Protein skimmer and return pump sized to the system volume.
Flow, heat, automation and consumables matched for a mixed reef.
Best for

A reefer ready for a proper sump build on a showpiece Waterbox MARINE X.

COUNSEL

"We'll talk you out of overbuying. Trust is the actual product."

— the rule every product page is written by

Have a reefer check your build
YOU SAY"Can I change a part of this kit?"
WE SAYYes — hit 'Customize in the Build Studio' and swap any slot. The kit is just our best-matched starting point.
YOU SAY"Is the kit price really the best deal?"
WE SAYIt's 15% below the sum of the parts — our top bundle tier — applied automatically when you add the kit to your cart.