ear view of four ZY-Series internal aquarium filters with cords, on a blue background
Diagram showing labeled parts of the ZY-Series internal filter, including suction cups, air inlet, and venturi nozzle
ZY-Series filter removing impurities, with before-and-after aquarium water clarity comparison
ZY-Series internal filter running with a raised spray bar labeled “Rain Cascade Filtration”
Four sizes of ZY-Series internal aquarium filters standing upright on a white background
ZY-Series internal filter underwater with attached venturi nozzle bubbling in a planted aquarium

ZY-Series Internal Aquarium Filters

Quiet internal filter with spray bar and media chamber. Great for planted tanks, quarantine setups, or boosting flow.

Price range: $16.99 through $27.99

ZY-Series Internal Aquarium Filters

Quiet. Versatile. Built for everyday aquariums.

The ZY-Series Internal Filters offer reliable filtration and multi-role flexibility in a compact form.er Each filter includes dual sponge inserts and a small internal media chamber. This chamber can hold fine media like Flexpure Biofilter Sponge, activated carbon, or other chemical filter materials in a small media bag.

These filters aren’t just sponge blocks — they can:

  • Replace a noisy air pump, sponge filter, or powerhead
  • Act as your main filter or supplement your existing system
  • Be moved into a quarantine or hospital tank when needed

You get mechanical, biological, and optional chemical filtration — all in one plug-and-play design.

Configurable Flow Options

  • Run the spray bar above the surface for aeration (acts like a gentle shower)
  • Swivel it below the surface for smooth, directional flow
  • Add the venturi nozzle for surface oxygenation without surface disturbance

Perfect for freshwater aquariums, planted tanks, breeding setups, or backup filtration.

Specifications

Model Wattage Flow Rate (L/h / GPH) Recommended Tank Size Dual Setup Max
ZY-N67 6W 500 L/h (132 GPH) 5–15 gallons Up to 20 gal
ZY-N68 15W 1000 L/h (264 GPH) 15–30 gallons Up to 40 gal
ZY-N69 25W 1500 L/h (396 GPH) 30–50 gallons Up to 75 gal
ZY-N70 30W 1800 L/h (475 GPH) 50–75 gallons Up to 100 gal

Key Features 🐠

  • Dual sponge inserts for mechanical and biological filtration
  • Internal chamber fits fine media bags with bio or chemical media
  • Adjustable spray bar for surface or submerged flow
  • Venturi nozzle boosts oxygenation
  • Slim profile fits most tanks
  • Plug-and-play setup with strong flow and quiet operation

Q&A

Q: Can I use this in a planted aquarium?
A: Yes. It’s quiet and adjustable — ideal for planted setups Highly resistant to plugging up. You can also run it on a smart plug for nighttime aeration after your lights go off.

Q: Will this replace a sponge filter or air stone?
A: It can. It adds surface agitation, improves oxygen exchange, and provides actual filtration — unlike passive air stones.

Q: Can I move it to a hospital or quarantine tank?
A: Yes. Run it in your main tank to keep it seeded, then move it into a hospital or quarantine tank when needed. It’s a great way to be ready for emergencies.

Q: What kind of media fits inside?
A: Fine filter bags filled with lightweight bio media (like pumice or sintered material) work best. Larger rings don’t fit well in the smaller models.