The Flex is Fluval's curved-front glass aquarium kit, supplied complete with LED lighting, a circulation pump and a filter hidden in the rear chamber, so it suits someone who wants one box rather than a shopping list of parts. The 34 L and 57 L are freshwater-only nano tanks with remote-controlled lighting; the 123 L is a much larger, app-controlled setup. One honest caveat: these are heavy glass tanks with a bowed front panel, so we sell them for pickup only in Australia rather than risk them on a courier network.
Sizes here run 34 L, 57 L and 123 L. The 34 L Black and 57 L Black listed here are the Flex 2.0 generation; the 34 L White and both 123 L colours are the original Flex. Matching furniture is stocked separately in the Flex Curve Stand and the 123 L Cabinet Stand.
Features
- Curved front glass — the bowed front panel is the visual signature of the range and gives a wider viewing angle than a flat-fronted nano.
- Hidden rear filtration — the pump and media sit in a compartment behind the back wall, so there is no equipment in the display area.
- 3-stage filtration — mechanical foam, chemical carbon and biological BIOMAX are all included from new.
- Adjustable dual outputs — two output nozzles adjust independently so you can aim flow away from delicate plants or slow swimmers.
- Colour-mixing LEDs — white plus RGB diodes let you blend colour and run effects such as fading cloud cover and lightning.
- 2.0 changes — Fluval describes the 2.0 as having a reconfigured integrated filtration system with adaptable water output options plus several cover enhancements; it adds a spray bar, integrated cover risers, a feeding port and rear hinges, and runs Poly-Carb cartridges in place of loose carbon.
Specifications
- 34 L (original) — 35 x 33 x 33 cm; pump 230 L/h; 39 LEDs (36 white, 3 RGB), 1900 lm, 7500 K
- 34 L (2.0) — 35 x 33 x 33 cm; pump 350 L/h; 39 LEDs (36 white, 3 RGB), 6500–7000 K, 5.26 W at 230–240 V
- 57 L (2.0) — 41 x 39 x 39 cm; pump 480 L/h; 54 LEDs (48 white, 6 RGB), 6500–7000 K, 7.9 W at 230–240 V
- 123 L (original) — 82 x 40 x 39 cm; pump 770 L/h at 230–240 V (810 L/h at 120 V); Aquasky LED with 63 LEDs (42 white, 21 RGB), 1450 lm, 3000–25000 K
- Lighting control — infrared remote on the 34 L and 57 L; FluvalSmart app on the 123 L
- Filtration — 3-stage; the 123 L runs two independent media chambers
- Water type — the 34 L and 57 L kits are listed for freshwater use only
What's Included
- Glass aquarium with cover
- LED lighting and low-voltage transformer
- Circulation pump with output nozzle
- Filter media — foam block, carbon insert and BIOMAX insert (the 123 L ships two of each; the 2.0 ships a BIOMAX insert plus Poly-Carb cartridge and frame)
- LED remote control (34 L and 57 L)
- Undertank anti-slip pad
- Spray bar with hose and elbow connector (2.0 only)
