TMC Reef Pump 250 Nano
The Reef Pump 250 nano is part of the nano range, designed to keep your energy consumption low.
- Low Voltage Compact DC Pump
- Ideal for small and nano tanks
- High power and flow rates
- Quiet operation
- ‘Soft start’ feature for improved impeller life
- Variable flow model with 10 variable speeds
- Controller included
- Powered by USB-A – adaptor included
| Specification | Detail |
|---|---|
| Flow Rate | 250 liters per hour |
| Power Supply | USB-A (5V/1A) |
| Operating Voltage | 5V DC |
| Speed Settings | 10 variable speeds |
| Noise Level | Quiet operation (below 25 dB) |
| Impeller Type | DC with soft start |
FAQ
What is the flow rate of the TMC Reef Pump 250 nano?
The flow rate is 250 liters per hour.
Can the pump be used with a standard USB power source?
Yes, it is powered by USB-A and comes with an adapter.
Does the pump have a built-in controller?
Yes, the pump includes a controller with 10 variable speed settings.

Simon Dickens –
Great for my 10-gallon nano tank. The pump runs quietly and maintains consistent water flow. The soft start feature helps extend the impeller life. Easy to set up with the included USB adapter.
Carolyn Tucker –
I use this pump in a small reef tank and it’s reliable. The variable speeds are useful for adjusting flow based on tank conditions. A bit on the small side for larger setups, but perfect for nano tanks.
Stewart Hudson –
Low power consumption and very quiet. The 10 speed settings allow me to fine-tune water movement. Works well with my marine filter system and has not shown any issues after several months of use.