Fluval
Fluval Spec V (5 gal)
Gear matched to this tank: lights by coral goal, skimmers and pumps checked against its rear chamber.
Best lights (by coral goal)
Medium
—
- covers 20.5×8" display area
- LPS/mixed intensity meets your LPS goal
Kessil Kessil A160WE Tuna Blue
Medium
$259.00
- covers 20.5×8" display area
- LPS/mixed intensity meets your LPS goal
Nicrew Nicrew HyperReef 50 (Gen 2)
Medium
—
- covers 20.5×8" display area
- LPS/mixed intensity meets your LPS goal
Aqua Illumination AI Prime 16HD Reef
High
$264.99
- covers 20.5×8" display area
- SPS-capable intensity meets your LPS goal
Reef Breeders Reef Breeders Reef Nano LED
High
$169.99
- covers 20.5×8" display area
- SPS-capable intensity meets your LPS goal
Compare all lights ranked for the Fluval Spec V (5 gal) →
Best protein skimmers (sized for medium bioload)
HOB
$95.99
- rated to 25g, covers your 8g medium-bioload target (tank + margin)
- hangs on back — no chamber-fit constraint
- built for much larger systems (25g) — likely oversized for a nano
HOB
$189.99
- rated to 75g, covers your 8g medium-bioload target (tank + margin)
- hangs on back — no chamber-fit constraint
- built for much larger systems (75g) — likely oversized for a nano
HOB
$334.94
- rated to 105g, covers your 8g medium-bioload target (tank + margin)
- hangs on back — no chamber-fit constraint
- built for much larger systems (105g) — likely oversized for a nano
in-chamber
$149.99
- rated to 20g, covers your 8g medium-bioload target (tank + margin)
- rear-chamber dims unknown for this tank
Compare all skimmers ranked for the Fluval Spec V (5 gal) →
Best return pumps (for ~5× display turnover)
DC
$146.00
- DC pump — dial flow to taste
- strong: ~61.1× turnover — fine if controllable/throttled
- rear-chamber dims unknown for this tank
DC
$159.00
- DC pump — dial flow to taste
- strong: ~100.9× turnover — fine if controllable/throttled
- rear-chamber dims unknown for this tank
DC
$311.84
- DC pump — dial flow to taste
- strong: ~148.5× turnover — fine if controllable/throttled
- rear-chamber dims unknown for this tank
Compare all return pumps ranked for the Fluval Spec V (5 gal) →
Tank specs
| Display volume | — gal |
| Total water volume | 5 gal |
| Outer dimensions (L×W×H) | 20.5 × 7.5 × 11.5 in |
| Rear chamber (W×D×H) | unknown |
| Stock return pump | 80 gph |
| Stock light | Integrated 10W high-output LED (37 LEDs, 7000K, ~821 lm) |
5 US gal (19L) long, low desktop AIO. Footprint ~20.5 in long x 7.5 in front-to-back x ~11.5 in tall (glass envelope slightly smaller than the framed footprint; sources vary). Ships with an integrated 10W 7000K high-output LED and an adjustable 55-80 GPH return pump (stockReturnGph set to the 80 GPH max). 3-stage rear-corner filtration compartment; Fluval publishes no discrete usable chamber dims, so chamber omitted.