Waterbox INFINIA Frag 125.4 Aquarium System (78 gallons) fit check
Waterbox INFINIA Frag 125.4 Aquarium System (78 gallons) is a 78-gallon sumped reef ready measuring 48.2x25.3x16.1 in. It ships with a stand and a sump or rear filtration; plan separately for return pump, lighting, and ATO. At that volume ReefCrafter's math points to 195-390W of heating and about 2,340 GPH of mixed-reef flow.
Waterbox INFINIA Frag 125.4 Aquarium System (78 gallons): fits roughly 78 gallon systems. Specs, compatibility math, sizing risks, and alternatives before you…
Who it is for
Good fit for
- ✓ Keepers who want filtration space built in rather than plumbed later.
- ✓ Stocking plans that include larger fish such as tangs, once the tank is mature.
Not a fit for
- ✕ Buyers expecting a complete kit; it still needs return pump, lighting, and ATO.
Listed features
- shallow frag-friendly height
- cabinet and sump included
- plumbing kit
- pre-fabricated silent plumbing
Compatibility math
Downstream requirements
Example: 78g points to about 195-390W of heat and 2,340 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.
Professional fit context
- Check display volume, total volume, footprint, included sump/stand, and what equipment is still missing.
- Waterbox INFINIA Frag 125.4 Aquarium System (78 gallons) fits roughly 78 gallon systems; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- Waterbox MARINE X 110.4 Aquarium System (79 gallons)
79 gallons vs 78: a larger display.
- Red Sea Reefer Peninsula 350 G2+ System (73 Gal)
73 gallons vs 78: a smaller display.
- Red Sea Reefer 350 G2+ System (72 Gal)
72 gallons vs 78: a smaller display.
Livestock this affects
- Flame angelfish
70+ gallon minimum; fits this 78-gallon display.
- Engineer goby
55+ gallon minimum; fits this 78-gallon display.
- Melanurus wrasse
55+ gallon minimum; fits this 78-gallon display.
- Copperband butterflyfish
Needs 100+ gallons; too large for this tank.
Full spec snapshot
- Category
- Tanks
- Build tier
- Premium
- Estimated price
- $3,119
- Tank fit range
- fits roughly 78 gallon systems
- Format
- Sumped Reef Ready
- Display volume
- 78 gal
- Footprint
- 1,220 sq in
Related reading
Questions
What equipment comes with the Waterbox INFINIA Frag 125.4 Aquarium System (78 gallons)?
The catalog lists a stand and a sump or rear filtration as included. You still need return pump, lighting, ATO, skimmer, and flow pumps.
What size heater does the Waterbox INFINIA Frag 125.4 Aquarium System (78 gallons) need?
At 78 display gallons, ReefCrafter's 2.5-5 W per gallon band gives 195-390W, ideally split across two heaters of about 100W.
What tank size is the Waterbox INFINIA Frag 125.4 Aquarium System (78 gallons) for?
ReefCrafter's catalog fit range for it is 78 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 Waterbox INFINIA Frag 125.4 Aquarium System (78 gallons) against?
Waterbox MARINE X 110.4 Aquarium System (79 gallons) (79 gallons vs 78: a larger display); Red Sea Reefer Peninsula 350 G2+ System (73 Gal) (73 gallons vs 78: a smaller display); Red Sea Reefer 350 G2+ System (72 Gal) (72 gallons vs 78: a smaller display).
