Bio Filter for Rimless Aquariums – 75GPH



Filter your nano tank quickly with this filter.
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JBJ's Rimless Bio Filter will add 3 stages of filtration in seconds to your rimless aquarium. Filter your nano tank in a matter of seconds! There are many fantastic nano tanks available, but the search for a suitable filter system to fit them is a challenge. This JBJ Bio Filter is ideal for rimless aquariums that are up to 30 gallons and at least 10.5" tall. The 3 stages of internal filtration feature an overflow built-in which helps remove the top layer of the water column before transferring it into the cartridge for filtering. The cartridge contains mechanical filtering media, activated carbon, as well as ceramic rings. After the cartridge is installed, water will flow through the return pump, where it will be returned to the aquarium via the adjustable return nozzle.
  • Built-in Overflow
  • Adjustable Return Nozzle
  • Designated Heater Column
  • 3 Stages of Filtration
  • Compatible with rims up to 6mm


  • Dimensions - 7.5" L x 2.5" W x 10.5" H
  • Max Tank Thickness - 0.23" (6mm)
  • Max Flow - 76 GPH
  • Power Consumption - 4W  120VAC

What's Included

  • 1x Bio Filter Housing
  • 1x Bio Filter Lid
  • 1x 3-Stage Filter Cartridge
  • 1x Return Nozzle
  • 1x Return Pump
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In order to run a properly functioning aquarium, it's important to ensure that the aquarium has the ideal living conditions that your fish can live in. This includes being at the right temperature to ensure your water is not contaminated with toxic chemicals and harmful toxins. One of the main components to keep your aquarium in good health is biofiltration. Biofiltration is a process that allows you to get rid of undesirable naturally occurring waste (ammonia NH4, nitrite NO2, and Nitrate NO3) with the help of living microorganisms that alter these wastes into harmless substances. This process is known as the Nitrogen Cycle. Through the aid of bacteria, this process converts ammonia to nitrite, and then it transforms into nitrate. When the proper conditions are met it converts nitrate back to nitrogen gas.
5.0 lbs
7.5 × 3.5 × 11.5 in
Helpful Questions From Clients
Frequently Asked Questions
Is hiring a professional necessary to set up a saltwater aquarium?

As a general rule, a larger custom aquarium might require installation by a professional. However, a kit from our online fish store is relatively affordable and beginner friendly. That means you should have no problem setting it up yourself.

Which saltwater aquarium fish should you choose when starting out?

Consider a yellow tang fish. This popular saltwater aquarium fish does a great job of coexisting with other types of fish you’ll find in our online fish store.

How does a saltwater aquarium differ from a freshwater one?

Saltwater aquariums require a bit more maintenance and monitoring than freshwater tanks. Different fish require different levels of salinity, pH tolerances, and temperature requirements. They also require specialized pumps, filters, and other equipment that can handle salt. We can guide you through everything you need to know to set up a healthy, thriving reef tank.

Do fish in a saltwater aquarium swim in a school?

That depends on the species. However, if it’s a fish that swims in a school in the wild, they’ll do the same in an aquarium. Some fish that swim in schools include the green and blue chromis, cardinalfish, and dartfish, for example. When ordering from an online fish store, make sure you do your research on how specific fish species behave to ensure they’ll school (or at least coexist) with your current fish.

Is the effort required to maintain a saltwater aquarium worth it?

Yes! Many aquarists dream of owning thriving saltwater aquariums. You have a tiny piece of the ocean in your home, featuring magical and exotic fish that can only survive in saltwater.