FastAquatics
Side-by-side equipment comparison

Sump vs AIO (All-In-One) Tank

Sump vs AIO (All-In-One) Tank side-by-side comparison. Pros, cons, when to pick each, and recommended setups for each tank type.

Sumped Tank

Pros

  • Adds 25-40% water volume
  • Hides equipment in cabinet
  • Easy to add reactors/dosing
  • Premium skimmer fits
  • Refugium possible

Cons

  • Complex plumbing (drilling + overflow)
  • Floor risk during plumbing failures
  • Higher startup cost
  • Requires cabinet space below tank

AIO (All-In-One) Tank

Pros

  • Clean rimless look
  • Simple setup (no plumbing)
  • Built-in filtration chambers
  • No floor risk
  • Smaller footprint

Cons

  • Less total water volume
  • Limited equipment placement
  • Skimmer/heater compete for chamber space
  • No refugium option (typically)
  • Replace fixture if outgrown

Which to pick (by use case)

Use caseRecommended
Nano reef under 40gAIO (Innovative Marine Nuvo, Waterbox)
Reef 75g+Sumped
First reef buildAIO
Long-term advanced reeferSumped
Renter / no drilling allowedAIO

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