FastAquatics
Side-by-side equipment comparison

HOB vs Canister Filter

HOB vs Canister Filter side-by-side comparison. Pros, cons, when to pick each, and recommended setups for each tank type.

HOB (Hang-On-Back) Filter

Pros

  • Cheap ($30-80)
  • Easy to maintain
  • Visible flow + water level monitoring
  • Easy to add new media
  • Works for tanks 5-40g

Cons

  • Loud (waterfall splash)
  • Limited media volume
  • Visible from front of tank
  • Can spill water during cleaning

Canister Filter

Pros

  • Silent operation (located in cabinet)
  • Massive media capacity
  • Hides under tank
  • Better biological filtration
  • Best for tanks 40g+

Cons

  • Expensive ($150-400)
  • Complex setup (priming + plumbing)
  • Harder to maintain (full disassembly)
  • Can leak if O-rings fail

Which to pick (by use case)

Use caseRecommended
Beginner setupHOB
Tanks under 40gHOB
Tanks 40g-180gCanister
Planted tankCanister (silent)
Reef tankSump (skip both)
Cichlid (heavy bio-load)Canister

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