Quick Summary
The Interpet Deltatherm is an adjustable aquarium heater for tropical and marine setups. It is the 300 W model and is stated for aquariums from 135 to 270 litres. The heater is black and uses positive click-control adjustment, with a default setting of 24°C.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Interpet, for buyers wanting this specific make. |
| Model | Deltatherm, the named heater range. |
| Product type | Adjustable aquarium fish tank heater. |
| Power | 300 W, a key check for the heating setup. |
| Suitable aquarium volume | 135 to 270 litres, so the tank size should match this range. |
| Temperature control | Positive click-control adjustment, with a default setting of 24°C. |
| Colour | Black. |
| Dimensions | 35.5 cm x 2.5 cm x 2.5 cm, useful for judging space inside the aquarium. |
What to Compare Before Buying
- Tank volume: This model is stated for aquariums from 135 to 270 litres. Compare that range with your tank size.
- Power: The heater is 300 W. Check that this matches the heating needs of your aquarium setup.
- Adjustment: It uses positive click-control adjustment and starts at 24°C. Make sure that suits the temperature you want to maintain.
- Space inside the tank: The heater measures 35.5 cm x 2.5 cm x 2.5 cm, so allow room for placement.
Compatibility, Size and Fit
This heater is for aquariums and is stated for tropical and marine use. The key fit check is the aquarium volume range of 135 to 270 litres. If your tank sits outside that range, a different heater size is likely the better match.
What Else You May Need
Use the heater with an aquarium setup that matches the stated litre range, and check that you have suitable space for the 35.5 cm heater length inside the tank.
Before You Decide
Confirm the aquarium volume, the 300 W rating and the heater dimensions before choosing an offer. If you need a different size range, a different heater is the better option.





