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Aqua Natural
Aqua Natural Pisces Live Filter Media Biospheres

Aqua Natural Pisces Live Filter Media Biospheres

4.6· 18 ratings

Best price now

$9.99at Petco.comObserved at 1:15 AM

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Our take on the Aqua Natural Pisces Live Filter Media Biospheres

Aqua Natural Pisces Biospheres are a biological filter media made of durable spheres that host nitrifying bacteria. One 16 oz can is rated for tanks up to 50 gallons and works in sumps, canister filters, HOB filters, media bags and reactors, in fresh or salt water. The spheres are designed not to dissolve or break down, so they last through repeated cleanings. At $9.99 at Petco.com as of November 4, 2026, it sits at the low end of its recent price range.

Best forNew tank setups that need a fast nitrogen cycleFreshwater and saltwater aquaristsCanister, HOB and sump filter usersBudget-minded hobbyists seeding a quarantine tank
Pros
  • Jumpstarts the nitrogen cycle in new setups
  • Works in sumps, canisters, HOB filters, bags and reactors
  • Suitable for fresh and salt water
  • Durable spheres resist dissolving and breaking down
  • One 16 oz can covers tanks up to 50 gallons
  • Low entry price at $9.99
Cons
  • Biological media only; no mechanical or chemical filtration
  • Live bacteria can die if shipped or stored poorly
  • One can is not enough for tanks over 50 gallons
  • Porous media can trap debris and needs rinsing

Aqua Natural Pisces Live Filter Media Biospheres prices at every store

  • Petco.comNew

    In stock

    $9.99Observed at 1:15 AM
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  • Poseidon's RealmNew

    In stock

    $10.63Observed at 1:15 AM
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  • PetSmartNew

    In stock

    $11.19Observed at 1:15 AM
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  • Chewy.comNew

    In stock

    $11.19Observed at 1:15 AM
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Also available at

  • BulkReefSupply.comCheck price at BulkReefSupply.com
  • Splashy Fish StoreCheck price at Splashy Fish Store
  • Squeaky's AquaticsCheck price at Squeaky's Aquatics

Aqua Natural Pisces Live Filter Media Biospheres price history

Lowest price we've seen: $9.99 on Nov 4 at Petco.com. Tracked across 7 stores since Nov 4.

What reviewers say

Rated 4.6 out of 5 from 18 ratings, buyers mostly report the media works as a cycle starter and holds up in filters. A few note the live bacteria benefit depends on how fresh the can is on arrival.

Pros
  • Helps new tanks cycle faster
  • Fits easily in canister and HOB media trays
  • Spheres stay intact over time
  • Good value for the price
Cons
  • Results vary with how fresh the can is
  • Small can size for larger tanks

Specifications

Filtration Capacity
Up to 50 Gallons (One 16 oz Can)
Product Type
Filter Media
Tank Size
Up to 50 Gallons (One 16 oz Can)
Water Type
Saltwater, Freshwater
Animal Type
Fish
Compatible With
Sumps, Canister Filters, HOB Filters, Media Bags, Reactors
Material Type
Durable Material
Media Type
Live Filter Media
Filtration Method
Biological
Filtration Stage
Biological filter
Filtration Highlights
Durable Material That Won't Break Down or Dissolve
Installation Type
Sump, Drop-in (Canister Filters), Hang-on (HOB Filters), Media Bags, Reactor
Efficiency
Jumpstarts the Nitrogen Cycle in New Setups
Durability
Won't Break Down or Dissolve, Durable

Questions and answers

Is it worth buying over cheaper ceramic media?
Yes if you want a biological boost for a new tank. Plain ceramic rings are cheaper but carry no live bacteria, so a cycle takes longer to start.
How much media do I need for my tank?
One 16 oz can is rated for up to 50 gallons. Use two cans for tanks between 50 and 100 gallons, or add it alongside existing media.
Does it work in saltwater tanks?
Yes. The media is listed for both saltwater and freshwater, and the bacteria it hosts are the same nitrifiers used in marine systems.
Can I put it in a hang-on filter?
Yes. The spheres fit HOB media chambers, canister trays, sumps, media bags and reactors. Rinse them in tank water before use, not tap water.
When is the price lowest?
It was $9.99 at Petco.com as of November 4, 2026, with four stores listing it new. Media like this often drops during tank starter kit sales.
Where is the Aqua Natural Pisces Live Filter Media Biospheres cheapest?
At Petco.com, for $9.99, as of our latest check.
What do buyers say about the Aqua Natural Pisces Live Filter Media Biospheres?
Rated 4.6 out of 5 from 18 ratings.
Where can I buy the Aqua Natural Pisces Live Filter Media Biospheres?
7 stores we checked sell it, including Petco.com, Poseidon's Realm, PetSmart, Chewy.com, BulkReefSupply.com.