- Sku: CG2BE6024-BK
Tideline Crystaline G2 Reef External 60x24 (130 Gallon)
Tideline Crystaline G2 Reef External 60x24 (130 Gallon) is the grandest system in the Crystaline G2 line: a huge 60 in wide, 24 in deep, 130-gallon rimless reef system with a massive footprint for showpiece aquascapes. It pairs a low-iron crystal display tank plumbed with Tideline's Ultra-Slim External Overflow, a matching glass refugium sump, and a fully-assembled, USA-made cabinet stand. The external overflow keeps the inside of the display completely open and clean, with no internal overflow box eating into your aquascape. Prefer the overflow tucked inside the tank? See the Reef Internal 60x24. Just want a display tank? The Show Kit 60x24 is the option. Want a shallower 20 in depth? See the Reef External 60x20, or a shorter footprint, the Reef External 48x24.
Whatโs in the Package
- Display tank: 130-gallon rimless aquarium, 60 in x 24 in x 21 in, low-iron crystal front and side panels with beveled edges, drilled for external plumbing.
- Ultra-Slim External Overflow: mounts on the back of the tank for a whisper-quiet, silt-free surface skim while keeping the display interior wide open.
- Tideline Crystal Glass Refugium Sump: newly-designed low-iron glass sump with a built-in refugium section for filtration, media, and macroalgae.
- Fully-assembled stand: 36 in tall cabinet, pre-painted or stained in your chosen finish, side-access doors on both sides, controller-ready. No assembly required.
Built for Reef
- Low-iron crystal glass: ultra-clear tank and sump show true coral color with none of the green tint of standard glass.
- External overflow: keeps the display interior open and clutter-free, with a clean, quiet surface skim.
- Massive 60 x 24 footprint: wide and deep, with maximum room for fish, rockwork, and coral growth.
- Refugium sump: room for a skimmer, return pump, heater, media, and a lit refugium to grow macroalgae and pods.
- USA-made stand: the 36 in tall stand is fully assembled and built here in the USA, with dual side doors for easy equipment access.
Specifications
| Tank dimensions | 60 in x 24 in x 21 in |
| Tank volume | 130 gallons (display only, excludes sump) |
| Overflow | Ultra-Slim External Overflow |
| Sump | Tideline Crystal Glass Refugium Sump |
| Stand height | 36 in |
| Overall height with tank | about 57 in |
| Glass | Low-iron crystal, rimless, beveled edges |
| Stand | Fully assembled, USA-made, dual side doors, controller-ready |
| Finishes | 13 options (see below) |
| Availability | Special order, in-store pickup |
Choose Your Finish
The Crystaline G2 stand is offered in 13 cabinet finishes: Black, White, Carbon, Cognac, Frost, Grey, Mahogany, Medium Oak, Sahara, Cherry, Mocha, Spanish Oak, and Unfinished. Pick your finish from the drop-down above. Selecting a finish shows its matching render.
Package Options
Take the build further, all by special order:
- Controller-Ready: add a controller board to the stand.
- Deluxe HYDROS-equipped: go all-out with a fully Hydros-controlled setup for automated pumps, monitoring, and safety.
The kit includes the tank, external overflow, sump, and stand. A return pump, protein skimmer, heater, and light are not included, so you can spec the gear you prefer. Ask us and we will put a full package together.
Recommended Pairings
- Kessil AP9X: premium reef LED to light the rimless display.
- CaribSea Ocean Direct: live marine sand to start the reef.
- Salt mixes: mix up saltwater for fills and water changes.
- Seachem HydroTote: haul RO/DI and saltwater for pickup and top-off.
- All aquarium systems: compare other Tideline sizes and configurations.
FAQ
How is this different from the Reef Internal?
Both are complete reef systems with the same 130-gallon tank, refugium sump, and stand. This External version uses the Ultra-Slim External Overflow on the back of the tank, so the tank interior stays completely open. The Reef Internal uses a traditional internal overflow box in a back corner.
How big is the whole setup?
The display tank is 60 in x 24 in x 21 in and holds 130 gallons (the sump adds more total water volume). The stand is 36 in tall, putting the rim at roughly 57 in off the floor.
Does it come with a pump, skimmer, or light?
No. The kit is the tank, external overflow, refugium sump, and stand. Add the return pump, skimmer, heater, and light you prefer, or ask us to spec a complete package.
Do I have to build the stand?
No. Every Crystaline G2 stand ships fully assembled and pre-finished. No flat-pack, no assembly.
Can I get a specific finish?
Yes, all 13 finishes are available. Because each unit is built to order, choose your finish at checkout and we will confirm the lead time.
Have a question?
Tideline Crystaline G2 Reef External 60x24 (130 Gallon)


