Tanks · Red Sea

Red Sea Reefer Peninsula 350 G2+ System (73 Gal) fit check

Quick answer

Red Sea Reefer Peninsula 350 G2+ System (73 Gal) is a 73-gallon sumped reef ready. It ships with a stand, a sump or rear filtration, and ATO; plan separately for return pump, lighting, and skimmer. At that volume ReefCrafter's math points to 185-365W of heating and about 2,190 GPH of mixed-reef flow.

Red Sea Reefer Peninsula 350 G2+ System (73 Gal): fits roughly 73 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you buy.

Red Sea Reefer Peninsula 350 G2+ System (73 Gal) — primary product image
Category
Tanks
Build tier
Balanced
Estimated price
$2,899 est.
Tank fit range
fits roughly 73 gallon systems
Format
Sumped Reef Ready
Display volume
73 gal

Who it is for

Good fit for

  • ✓ Keepers who want filtration space built in rather than plumbed later.

Not a fit for

  • ✕ Buyers expecting a complete kit; it still needs return pump, lighting, and skimmer.
  • ✕ Tangs and other open-water fish that need 75+ gallon swimming room.

Listed features

  • rimless peninsula
  • dual viewing sides
  • cabinet and sump included
  • ReefATO+

Compatibility math

Downstream requirements

tank gallons drive heater watts, flow GPH, skimmer rating, and light spread

Example: 73g points to about 185-365W of heat and 2,190 GPH mixed-reef flow.

The tank is the constraint every other component has to satisfy.

Risk notes

  • A tank can look affordable until you account for the light spread, skimmer room, stand access, and upgrade path it forces.
  • Price is marked as estimated, so verify current vendor pricing before treating the budget as final.

Professional fit context

  • Check display volume, total volume, footprint, included sump/stand, and what equipment is still missing.
  • Red Sea Reefer Peninsula 350 G2+ System (73 Gal) fits roughly 73 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
  • Treat the displayed price as a budget placeholder until a reviewed vendor page confirms current pricing.

Alternatives to compare

Livestock this affects

Full spec snapshot

Category
Tanks
Build tier
Balanced
Estimated price
$2,899 est.
Tank fit range
fits roughly 73 gallon systems
Format
Sumped Reef Ready
Display volume
73 gal

Related reading

Questions

What equipment comes with the Red Sea Reefer Peninsula 350 G2+ System (73 Gal)?

The catalog lists a stand, a sump or rear filtration, and ATO as included. You still need return pump, lighting, skimmer, and flow pumps.

What size heater does the Red Sea Reefer Peninsula 350 G2+ System (73 Gal) need?

At 73 display gallons, ReefCrafter's 2.5-5 W per gallon band gives 185-365W, ideally split across two heaters of about 95W.

What tank size is the Red Sea Reefer Peninsula 350 G2+ System (73 Gal) for?

ReefCrafter's catalog fit range for it is 73 gallon systems. Confirm that against your final display volume, sump volume, and livestock plan rather than the box label alone.

What should I compare the Red Sea Reefer Peninsula 350 G2+ System (73 Gal) against?

Red Sea Reefer 350 G2+ System (72 Gal) (72 gallons vs 73: a smaller display); Waterbox INFINIA Frag 125.4 Aquarium System (78 gallons) (78 gallons vs 73: a larger display); Waterbox MARINE X 110.4 Aquarium System (79 gallons) (79 gallons vs 73: a larger display).

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