Description
JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-05 — Powerful 3-Stage Nano Filtration
The JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-05 is a compact, slim hang-on-back power filter engineered specifically for nano aquariums up to 5 gallons. The JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-05 delivers complete 3-stage mechanical, chemical, and biological filtration in a quietly efficient, space-saving design that keeps small aquariums crystal clear without the bulk or noise of oversized equipment. The pre-filter sponge on the intake protects shrimp, fry, and small fish from being pulled in — making the JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-05 one of the best hang-on-back filter choices for shrimp tanks and nano betta setups. The slim profile keeps the filter tucked neatly behind the aquarium without intruding on the aquascape or dominating the view.
Key Features of the JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-05
- Designed for aquariums up to 5 gallons — perfectly scaled for nano tanks, betta tanks, shrimp tanks, and desktop aquariums
- 3-Stage filtration — mechanical, chemical, and biological filtration in a single compact unit
- Pre-filter sponge on intake — protects shrimp, fry, and small fish from being pulled into the filter; essential for invertebrate tanks
- Adjustable flow control valve — dial in the ideal flow rate for delicate inhabitants including shrimp and bettas that prefer gentle current
- Slim profile design — hangs compactly on the back of the aquarium keeping the aquascape in full view
- Waterfall-style outflow — promotes surface agitation, oxygen exchange, and CO2 diffusion
- Quick startup — easy to prime and begin filtering immediately
- Silent operation — designed to run quietly; ideal for bedroom, office, and living space placement
- 1-Year limited warranty — backed by JBJ Aquariums
JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-05 — 3-Stage Filtration System
Stage 1 — Mechanical Filtration
Combination fine and coarse sponge filters trap particulate matter, suspended debris, and uneaten food — removing visible waste from the water column before it reaches the chemical and biological media. The coarse pre-filter sponge on the intake protects small inhabitants while providing the first line of mechanical filtration.
Stage 2 — Chemical Filtration
Activated carbon removes dissolved organic compounds, odors, discoloration, and trace contaminants — maintaining water clarity and chemical stability in small-volume nano systems where parameter swings occur quickly.
Stage 3 — Biological Filtration
Ceramic rings provide substantial surface area for colonization by beneficial nitrifying bacteria — supporting the nitrogen cycle and converting toxic ammonia and nitrite into less harmful nitrate in small aquarium environments.
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-15 — up to 20 gallons — $27.00
- JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-45 — up to 40 gallons — $35.00
- JBJ Reaction HOB Hang-On-Back Aquarium Filter HB-55 — up to 50 gallons — $42.00
Technical Specifications
| Model | HB-05 |
| Aquarium Capacity | Up to 5 gallons |
| Filtration Stages | 3-Stage (Mechanical, Chemical, Biological) |
| Flow Control | Adjustable flow control valve |
| Intake Design | Pre-filter sponge — shrimp and small fish safe |
| Outflow Style | Waterfall — promotes O2 exchange and CO2 diffusion |
| Compatible With | Freshwater and Saltwater Aquariums |
| Warranty | 1-Year Limited (JBJ Aquariums) |
| UPC | 894185521056 |
| SKU | HB-05 |
| Price | $22.00 |
For setup guidance, visit the JBJ Reaction HB-05 Quick Guide.








