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What volume and physical length are stated for HMC-200S?
The HMC table places this 200 W version at 40–60 US gallons and gives an 11.2-inch tube length. The specification is not an independent sizing test, and this site cannot enforce the 40-gallon minimum.
Explore this need in the finder →Does the HMC-200S have a remote display or a preset-only control?
Finnex describes the HMC as adjustable through an illuminated digital controller outside the tank, with a separate sensor and a 68–92°F range. Its memory-after-power-loss claim is manufacturer copy, not verified failover behavior.
Explore this need in the finder →Is the 200 W HMC documented as a glass heater?
No: the source calls the heating element titanium and says it is reinforced with a flame-retardant guard. That construction does not itself establish an independently tested shatterproof rating, and the guard does not replace safe installation.
Explore this need in the finder →Where the 200 W HMC sits in the table
Finnex identifies the HMC-200S as a 200 W titanium heater for 40–60 US gallons. The manufacturer table lists an 11.2-inch tube and 1.67 A at its stated 110 V reference. Its range starts ten gallons above the HMC-100S maximum of 30 gallons and meets the HMC-300S range at 60 gallons. This is a genuine model distinction, not a reason to calculate an aquarium’s required wattage from a chart alone: the family page does not document ambient-room conditions, insulation, lid or circulation assumptions for every environment.
The 11.2-inch tube length can help flag whether an aquarium has enough physical room, but the source does not provide the installed clearance or mounting footprint. A tank-space check needs the exact package and instructions, not an assumption that nominal tube length includes all clips, guard or sensor placement.
HMC control is a system, not an element-only claim
The HMC page describes a digital controller with an illuminated display and adjustable temperature setting, a separate remote sensor and memory of the previously chosen value after a power interruption. The table lists 68–92°F for this model. Finnex describes sensor separation as helping avoid local heat bias, but it does not state an accuracy tolerance in the reviewed table. The display and the water temperature should not be assumed to agree exactly; compare the tank water with a separate reliable thermometer, especially after installation or maintenance.
Finnex describes the guarded titanium element for freshwater and marine environments and uses the term submersible. The current instructions index names HMH, HMS and HPC heater manuals but no HMC manual entry. I found no HMC-specific safe waterline, orientation, minimum immersion depth, bracket instructions or inline-filter approval. Do not derive those directions from a different Finnex model family or from a promotional image.
Model and retail cross-check
The manufacturer’s HMC family table provides the exact HMC-200S row. The current grouped Finnex Shop record independently lists a 200 W choice with SKU HMC-200S and its own Shopify variant ID, while the UPC/barcode is null. The same grouped page offers 100, 300 and 500 W choices; the manufacturer family table adds 50 and 400 W sizes that are absent from those options. No price, inventory level or lifecycle conclusion is needed to identify the model, and none is claimed here.
The shared shop images show a controller and heater components, but filenames refer to HMU and no 200 W marking is visible. They do not close the exact-image requirement. The manufacturer’s amperage reference also does not resolve the full rated voltage range or frequency, leaving a meaningful electrical check for the exact label and instructions.
Why it remains a reference rather than a recommendation
Finnex’s 40-gallon lower limit matters: a volume result based only on the 60-gallon ceiling could point smaller aquariums toward this heater despite the published 40–60-gallon band. It therefore stays outside quiz recommendations. Any separate model-reference lookup is only an identification aid for the HMC-200S, not confirmation that it suits a particular tank.
At the boundary, the HMC-200S and HMC-300S both include 60 gallons in their published ranges, but the table does not establish that their heating output, control behavior or physical fit is equivalent at that volume. Compare the separate HMC-100S and HMC-300S assessments for their exact rows. Before buying any model found elsewhere, verify it is the expected HMC-200S, check the complete supply rating and follow the actual HMC setup directions.
Key specifications
Key details at a glance
| Rated heater power | 200 W |
|---|---|
| Lowest thermostat setting | 68°F |
| Highest thermostat setting | 92°F |
| Temperature control | Adjustable thermostat |
| Supported water types | freshwater / saltwater |
| Installation route | Fully submerged, in-tank |
Use the exact model’s instructions for operating limits, supplied equipment and version differences.
Sources for this review
Sources for this assessment
Check the complete aquarium setup
Use the finder to compare documented tank size, water type, installation and temperature-control fit. A match does not guarantee the keeper's species-specific target or measured performance.