Use case · Week 2

Aquarium backup (pump + heater + light)

Overnight outage sizing for filtration, temperature, and a low light — with surge notes and honest Wh math. Not fish-care advice: confirm livestock needs with an aquatic vet / experienced keeper.

Tank load stack (planning watts)

  • Air / water pump / filter. Often ~5–40 W continuous depending on head height and canister size — this is the oxygen / circulation priority for many keepers.
  • Heater. Commonly ~50–300 W while on; thermostats cycle. In a cold room a heater can dominate Wh. Some keepers pause heaters briefly in mild ambients — that is a care decision, not ours.
  • Light. LED bars ~10–50 W; skip high photoperiod during outages if filtration matters more.
  • Surge. Mag-drive pumps are usually mild; some return pumps / powerheads spike on start — still check continuous + surge on the station.
  • Saltwater / reef complexity. Skimmers, heaters, wavemakers, and ATO add watts fast — size up or prioritize equipment; this page uses a simple freshwater-style stack for math.

Not fish-care advice. QuietWatt lists battery specs for shopping research. We do not recommend stocking levels, temperature setpoints, or emergency protocols for livestock. Specs from manufacturer pages (checked Oct 2026).

Overnight Wh estimates

Hours ≈ (rated Wh × 0.85) ÷ average watts. Heater duty cycle varies with room temp.

Pump only (~15 W)

~16–115 h

286 Wh ≈ 16 h · 1,024 Wh ≈ 58 h (estimates) — easy overnight filtration

Pump + light (~30 W)

~8–58 h

Still comfortable on 286 Wh+ for one night (estimates)

Pump + heater avg (~80–120 W)

~2–21 h

Heater is the Wh killer — 1 kWh ≈ overnight class if cycling isn’t constant (estimates)

Measure your bricks with a watt meter. Insulate the tank / reduce drafts to cut heater duty — again, care judgment is yours.

Comparison: aquarium overnight stations

Filter by stack. Prefer pure sine for sensitive controllers; verify surge for your pumps.

Model Wh · AC / UPS Est. pump+light Heater / surge note Approx. USD
EcoFlow RIVER 3 Plus Filter first 286 Wh · 600 W · UPS <10 ms ~8–16 h @ 15–30 W (est.) Small heater bursts OK if under continuous W; overnight heater duty may empty it. ~$180–300
Anker SOLIX C300 288 Wh · 300 W ~8–16 h filtration class (est.) Watch heater nameplate vs 300 W continuous. ~$200–280
Jackery Explorer 1000 v2 Quiet 1,070 Wh · 1,500 W / 3,000 W surge ~30–50 h pump+light (est.) ~7–12 h class with heater averaging ~80–100 W (est.) — verify start surge. ~$499–589
BLUETTI Elite 100 V2 1,024 Wh · 1,800 W · UPS ≤10 ms Same overnight heater class UPS helps controllers on flicker; quiet for living-room tanks. ~$380–500
Anker SOLIX C1000 Expand 1,056 Wh · 1,800 W / 2,400 W surge Overnight+ · expand for storms Extra battery when heater duty stays high in winter blackouts. ~$400–600
EcoFlow DELTA 3 Plus 1,024 Wh expandable · 3,600 W surge Solo overnight; packs for multi-day Stronger surge story for chunkier return pumps. ~$600–900+
BLUETTI AC200L Buffer 2,048 Wh · 2,400 W class ~14–25 h heater-inclusive class (est.) Better multi-night buffer; still prioritize loads — not a reef rack plant. ~$800–1,100

QuietWatt is independent. Runtime figures are estimates. This page is product research only — not fish-care advice.

Where to buy (affiliate placeholders)

Tracked affiliate links will replace these placeholders once QuietWatt is enrolled in each program. Until then, use the official product URLs in the table above.

Buy via EcoFlow Buy via BLUETTI Buy via Anker Buy via Jackery Buy via Amazon

Placeholder anchors: #aff-ecoflow, #aff-bluetti, #aff-anker, #aff-jackery, #aff-amazon.

Sources