Hydor Theo 100WHydor

$37

Heater

Hydor Theo 100W

by Hydor

Hydor Theo — Italian-made glass heater with a tamper-proof thermostat ring, PTC self-limiting element, and IPX8-rated safety thermal cut-off.

entry

Power

100 W

Controller ready

Safety

Auto-shutoff

from$37

Compatibility with your build

Start a build to see compatibility for this product

Specifications

The full sheet

Specs

Power: 100 W
Controller ready: No
Safety: Auto-shutoff

Manufacturer & warranty

Warranty: 2 years

Build & materials

Materials: Shatterproof double-thickness glass tube, plastic housing/thermostat head
In the box: Heater unit · Suction cup mounting clips

What we check

Rules this part takes part in

Heating capacity

Checks wattage is adequate for your total water volume (about 1 W per litre).

See methodology

Works well with

Compatible tanks

Nano Cube WiFi 28 Gallon

23 gal

View tank

Fiji Cube

22.4 Gallon Cube AIO PRO Series

NUVO Fusion Pro 2 25 Lagoon

17 gal

View tank

Alternatives

Others in this category

Titanium Element 100W

IceCap

Heater$46

mid

Pinpoint Titanium 100W

Frequently asked

What are the key specs of the Hydor Theo 100W?

Power: 100 W. Controller ready: No. Safety: Auto-shutoff.

How much does the Hydor Theo 100W cost?

The Hydor Theo 100W starts around $37, though prices vary by retailer — see current offers on this page.

Which tanks is the Hydor Theo 100W compatible with?

Based on ReefPicker's compatibility checks, the Hydor Theo 100W fits tanks including Waterbox AIO 25 Peninsula, Innovative Marine NUVO Fusion 30L, JBJ Nano Cube WiFi 28 Gallon. Add it to a build on ReefPicker to check it against your specific tank.