Tideline Crystaline G2 Reef Internal 36x20 (65 Gallon)

The Tideline Crystaline G2 Reef Internal 36x20 is a complete 65-gallon reef-ready aquarium system: a rimless low-iron glass display, a fully-assembled USA-made stand, and a Tideline Crystal Glass Refugium Sump, all engineered to work together out of the box. The internal overflow feeds the sump for quiet water movement and hidden equipment, giving you a show-quality centerpiece that is genuinely ready to run. Round it out with our corals and reef gear to build the tank start to finish.

What's in the Package

• Display tank with a built-in internal overflow box that feeds the sump below.
• Fully-assembled stand, 36 inches tall, with side-access doors on both sides for easy equipment access.
• Tideline Crystal Glass Refugium Sump with a filter sock, a dedicated refugium chamber, and room for a skimmer and return pump.

Built for Reef

• Low-iron crystal glass on the front and side panels for true color and edge-to-edge clarity.
• Rimless design with polished, beveled edges for a clean, modern look.
• Internal overflow keeps plumbing tidy and quiet while feeding the refugium sump.
• Refugium sump adds water volume and stability and gives you space to grow macroalgae.
• Controller-ready: choose a Controller-Ready build, or go fully HYDROS-equipped for automated control.
• USA-made stand, pre-finished and fully assembled, so setup is fast.

Specifications

Choose Your Finish

Thirteen stand finishes are available so you can match your space: Black, White, Grey, Carbon, Cognac, Frost, Mahogany, Medium Oak, Sahara, Cherry, Mocha, Spanish Oak, and Unfinished.

Package Options

The Crystaline G2 Reef comes in tiered builds. Controller-Ready setups are pre-wired so you can add a controller later, while Deluxe HYDROS-equipped builds arrive ready for automated dosing, monitoring, and control. Ask us which tier fits your plans.

Recommended Pairings

• Kessil AP9X or Dalua Illumagic X4 reef LED lighting.
• CaribSea Ocean Direct live sand to seed the aquascape.
• Reef salt mix for mixing your saltwater.
• Seachem HydroTote for hauling RODI water.
• Other aquarium systems if you are comparing footprints.

FAQ

How big is the whole system?
The display holds 65 gallons on a 36 by 20 inch footprint at 21 inches tall, plus extra water volume in the refugium sump housed under the stand.

Is this only for saltwater?
It is built as a reef-ready system with an overflow and sump, so it shines for saltwater and reef tanks. The rimless low-iron display can also be run as a high-end freshwater or planted setup if you prefer.

Does it come with a light or return pump?
The core package includes the tank, stand, and sump. Lighting, return pump, and controllers are chosen to match your build, so ask us and we will spec a complete package.

Can I get a specific stand color?
Yes, thirteen finishes are offered. Colors are made to order, so contact us for current lead time on your choice.