Description
JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-55 — Powerful 3-Stage Filtration for 50 Gallon Aquariums
The JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-55 is the largest and most capable model in the JBJ Reaction HOB series — a slim, efficient hang-on-back power filter engineered for freshwater and saltwater aquariums up to 50 gallons. The JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-55 delivers complete 3-stage mechanical, chemical, and biological filtration through a dual intake system combining a standard bottom intake with a self-leveling surface skimmer — simultaneously filtering the full water column and removing oily surface film, floating particles, and sludge across the larger water volume of a 50-gallon system. The adjustable flow control valve adapts the filter output to the specific needs of any livestock, and the waterfall-style outflow promotes consistent oxygen exchange and CO2 diffusion across the aquarium surface. The JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-55 hangs compactly on the back of the aquarium with the same slim profile as the smaller models in the line — keeping the aquascape fully visible and the equipment footprint minimal.
Key Features of the JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-55
- Designed for aquariums up to 50 gallons — the largest model in the JBJ Reaction HOB series; ideal for large community tanks, cichlid systems, reef aquariums, and heavily planted tanks
- Dual intake design — combines standard bottom intake with self-leveling surface skimmer for superior whole-column and surface filtration
- Self-leveling surface skimmer — removes oily surface film, floating particles, and sludge; improves gas exchange across the larger water surface of a 50-gallon system
- 3-Stage filtration — mechanical, chemical, and biological filtration in a single compact hang-on-back unit
- Pre-filter sponge on intake — protects shrimp, fry, and small fish from intake suction
- Adjustable flow control valve — customize water movement for any livestock or plant requirements
- Waterfall-style outflow — promotes surface agitation, oxygen exchange, and CO2 diffusion
- Slim profile — hangs compactly behind the aquarium keeping the aquascape fully visible
- Quick startup and silent operation — reliable, quiet performance suited to any room placement
- 1-Year limited warranty — backed by JBJ Aquariums
JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-55 — 3-Stage Filtration System
Stage 1 — Mechanical Filtration
The dual intake draws water from both the water column and the surface simultaneously across the full 50-gallon volume. Combination fine and coarse sponge filters capture particulate matter, detritus, uneaten food, and suspended solids before they reach the chemical and biological media. The coarse pre-filter sponge protects small tank inhabitants while delivering consistent first-stage mechanical filtration.
Stage 2 — Chemical Filtration
Activated carbon removes dissolved organic compounds, tannins, odors, medications, and discoloration — maintaining water clarity and chemical stability across the larger water volume of a 50-gallon aquarium system.
Stage 3 — Biological Filtration
Ceramic rings provide extensive surface area for colonization by beneficial nitrifying bacteria — supporting a stable, resilient nitrogen cycle capable of handling the bioload demands of a fully stocked 50-gallon freshwater or saltwater system.
Choosing the Right Model — Full JBJ Reaction HOB Hang-On-Back Aquarium Filter Range
The JBJ Reaction HOB Hang-On-Back Aquarium Filter series covers tanks from 5 to 50 gallons. Browse all models at Quinn’s Fins:
- JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-05 — up to 5 gallons — $22.00
- JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-15 — up to 20 gallons — $27.00
- JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-45 — up to 40 gallons — $35.00
Need higher-capacity canister filtration? Browse our JBJ Reaction Pro 2 canister filters for aquariums up to 175 gallons.
JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-55 — Technical Specifications
| Model | HB-55 |
| Aquarium Capacity | Up to 50 gallons |
| Filtration Stages | 3-Stage (Mechanical, Chemical, Biological) |
| Intake Design | Dual intake — bottom intake + self-leveling surface skimmer |
| Flow Control | Adjustable flow control valve |
| Outflow Style | Waterfall — promotes O2 exchange and CO2 diffusion |
| Pre-Filter | Coarse sponge — shrimp and small fish safe |
| Compatible With | Freshwater and Saltwater Aquariums |
| Warranty | 1-Year Limited (JBJ Aquariums) |
| UPC | 810067700030 |
| SKU | HB-55 |
| Price | $42.00 |
For setup guidance, visit the JBJ Reaction HB-55 Quick Guide.
