The store will not work correctly in the case when cookies are disabled.
Bulk Reef Supply Saltwater Logo
Bulk Reef Supply Freshwater Logo

FREE Shipping Over $49

Free Shipping

Orders Over $49 Ship Free

$5.99 economy shipping on orders under $49

Learn More
| Earn Reward Points
Skip to Content
Menu BRS Freshwater
My Cart
    • My Account
    • My Wish List
    • My Orders
    • Address Book
    • Sign Out
    • Reward Points
  • Sign In
Bulk Reef Supply Mobile Menu
Close

Quick Links

  • Deals
  • Gift Cards
  • What's New
  • Education
  • Clearance
  • Open Box
  • PR Rewards
  • Shop Brands
  • FAQs
  • Saltwater
Menu
Fast Shipping Fast Shipping
Sign up to be a Reward Member Earn Reward Points
Returns 365-Day Returns
Experts Aquarium Experts
  • Fast Shipping Fast Shipping
  • Sign up to be a Reward Member Earn Reward Points
  • Returns Risk-Free 365 Day Returns
  • Experts Aquarium Experts
Loading...
Poly-Bio-Marine Inc

Poly Filter Aquarium Filter

Be the first to review this product
Grouped product items
Poly Filter 4 x 8

SKU: 250176

In stock

$7.99 $7.99

- +
Poly Filter 12 x 12

SKU: 232752

In stock

$37.49 $37.49

- +
Add to Wish List
Risk Free 365 Returns

Your Satisfaction Guaranteed With
365 Day Risk Free Returns

No longer need what you ordered? Ordered one too many? We've got your back.


Return new, unopened products in original packaging within 365 days for a full refund.

Under 60 days? No problem. We’ll issue your refund to the original form of payment. Over 60 days? Still no problem. We'll issue your refund in the form of store credit, which you can use like cash on our website.


Return unused, open box products within 30 days.

Open box but still unused? We can help. We’ll issue your refund to the original form of payment minus a small 10% restocking and handling fee.

Some exclusions apply, for more information go to Return & Replacement Details.

Skip to the end of the images gallery
main product photo
Skip to the beginning of the images gallery
Details

The POLY-FILTER is for filtering and purifying both fresh and salt water aquariums. It is a formulation of a special patented material bonded to a synthetic matrix. By means of a unique proprietary process, the POLY-FILTER is made impervious to salt and is also organic loving to certain materials. It can absorb and adsorb contaminants and other toxic materials found in nature or added to fresh and salt water with or without fish and invertebrates. Medication added to fresh and salt water aquariums for treatment of diseased fish will automatically be removed by the POLY-FILTER after serving their intended purpose before the medication can produce a toxic effect on the fish.

The POLY-FILTER is non-toxic and harmless to biological filtration because it allows a sufficient amount of ammonia to reach the biological filter in order to sustain the bacteria culture. The POLY-FILTER provides a supplemental means for removal of ammonia when the biological filter is unable to break down the excess ammonia and its concentration increases rapidly. Then the POLY-FILTER adsorbs the excess ammonia while the biological filter readjusts to higher ammonia input levels. Changes color when exhausted. 

 

Two Sizes Available:

  • 4" x 8"
  • 12"x12"


Recommended Use

Freshwater Application:
Add Poly-Filter to any holder or apparatus at any time.

Establishing Marine/Reef system:
Add Poly-Filter so water can pass through it.
For Maximum Filtration: Eliminate all water bypass.

Poly-Filter in established marine & freshwater systems:

  • Conventional power filter: Place Poly-Filter on bottom plate. Cover with gravel or floss. Do not restrict flow.
  • Plastic undergravel filters: Place Poly-Filter on top of the undergravel plate. Cover filter and plate with gravel.
  • Canister-type power filters: Place Poly-Filter in the chemical filter compartment. Add floss according to manufacturer’s instructions.

Medication removal (parasite and antibiotic treatments):
Remove Poly-Filter from water before any type of medication is added. Follow medication instructions issued by the manufacturer. After treatment is complete, place Poly-Filter back in the water to remove traces of medication. Test water for safe levels. When safe, remove discolored Poly-Filter, dry and save for next medication. Place new Poly-Filter in the water for removal of conventional organics and water purification.

Adding vitamins and trace elements:
Remove Poly-Filter from water before adding vitamins or trace elements. After 12 hours place Poly-Filter back into water. Poly-Filter will not remove calcium, magnesium, strontium, barium or alkalinity supplements. Poly-Filter will not remove trace elements included in marine salt mixtures.

General maintenance comments:
Poly-Filter turns color when removing medications.

  • Aqua to Dark Blue: Copper or Copper salts.
  • Orange: Iron.
  • Bright Red: Aluminum.
  • Bright Yellow: Ammonia, Amines or Solvents.


Dyes: Color of the solution when added i.e. Methylene Blue: Pale Blue. Malachite Green: Light Green, Tannins/Humic acid: Dark Brown, Organic Wastes: Light Tan progressing to Dark Brown. Poly-Filter extends time between water changes. Add de-chlorinated water to make up for evaporation loss. If pH shifts below acceptable level change water and add a new Poly-Filter. Heavy slime producing water conditioners can surface coat Poly-Filter and interfere with absorption performance. In marine water, soak in 3% hydrogen peroxide then rinse (in freshwater) well. In freshwater soak in 10% marine salt water solution then rinse (in freshwater) well.

More Information
More Information
SKU Poly Filter Aquarium Filter - Poly-Bio-Marine Inc
Aquarium Type Saltwater, Freshwater
Reviews
Write Your Own Review
You're reviewing:Poly Filter Aquarium Filter
Your Rating
Product Questions

Product Questions

Will this remove lithium and silicon ?
Question by: Steve on Jul 29, 2022, 12:20 PM
0
Thanks for the question! There is no indication that this filter will remove either of those elements from the water. We'd recommend Chemipure Elite to remove the silion, and do water changes to lower lithium as there is no filter to remove lithium. Let us know if we can help with anything else!
Answer by: Kyle Thomas (BRS Staff) on Aug 2, 2022, 1:25 PM
0
How many times can you reuse the filters under normal conditions ?
Question by: Faith H. on Jul 15, 2022, 6:22 PM
0
Thanks for the question! Most people don't reuse filter pads like this product, but discard after use. In theory you could rinse until clear but I would only do so once as each time it'll clog faster and faster. If using it for medication removal it is one time use only.
Answer by: Kyle Thomas (BRS Staff) on Jul 18, 2022, 3:59 PM
0
Can you cut the material to fit desired space in a sump?
Question by: Patricia Clifton on Nov 29, 2021, 8:14 PM
0
Thank you for reaching out. Poly Filter can be cut with a pair of regular scissors to fit a variety of spaces and shapes.
Answer by: William Glenn (BRS Staff) on Dec 13, 2021, 3:49 PM
0
how thick is this
Question by: Tony Mininno on Nov 5, 2021, 7:22 PM
0
This product is approximately 1/2" thick
Answer by: Matt Lucero (BRS Staff) on Nov 8, 2021, 12:57 PM
0

SIGN UP FOR THE BULK REEF SUPPLY NEWSLETTER

Don’t be the last to know this holiday season about sales, specials, new products, and more!

Sign Up Now
BRS Fresh https://media2.cdn.bulkreefsupply.com/media/logo/stores/1/BRS-Logo-498x174.png https://fresh.bulkreefsupply.com/
BRS Fresh Bulk Reef Supply
  • Facebook Opens a new window
  • Youtube Opens a new window
  • Instagram Opens a new window
  • TikTok Opens a new window

Contact

  • 763-432-9691

  • 8am - 6pm CT M-Th
    9am - 4pm CT Friday
  • support@bulkreefsupply.com
  • 6325 Sandburg Road, Suite 200
    Golden Valley, MN 55427 US

Bulk Reef Supply
About Us
Customer Service
Careers
Wholesale Customers
Instructions
Terms & Conditions
Customer Center
Preferred Reefer Program
International Shipping
Returns & Replacements
Payment, Pricing & Promos
Shipping & Delivery
APL Star Logo
© 2025 Aperture Pet & Life. All Rights Reserved.
Privacy Policy

item(s) Added to Your Cart

Product Name

View Cart Checkout Now
You may also like
Filter Media Cup Silencer (Lid Only) - Sea Foam White - 7 inch - Media Cup
Filter Media Cup
Filter Media Cup Silencer (Lid Only) - Sea Foam White - 7 inch - Media Cup
$9.49 $9.49

4
Red Sea
4" Filter Media Cup
$17.95 $17.95

3/8
Miscellaneous
3/8" Clear Vinyl Tubing - Pre-Cut
From: $11.99

Choose Options
NP-Bacto Pellets - Biodegradable Filter Media
Tropic Marin
NP-Bacto Pellets - Biodegradable Filter Media
From: $31.05

Choose Options
Phosi-Ex (500mL)
Nyos
Phosi-Ex (500mL)
$29.99 $29.99

CupriSorb - Copper Removing Resin
Seachem
CupriSorb - Copper Removing Resin
Rating:
100%
1 Review
From: $35.43

Choose Options
Reef BioFuel - Enhances Nutrient Uptake
Brightwell Aquatics
Reef BioFuel - Enhances Nutrient Uptake
From: $20.47

Choose Options
PhosBan Phosphate Adsorption Media
Two Little Fishies
PhosBan Phosphate Adsorption Media
From: $26.96

Choose Options
Bulk Premium ROX 0.8 Aquarium Carbon
Bulk Reef Supply
Bulk Premium ROX 0.8 Aquarium Carbon
Rating:
97%
23 Reviews
From: $22.99

Choose Options
500 mL Elimi-Phos Rapid
Tropic Marin
500 mL Elimi-Phos Rapid
$24.77 $24.77

Login and Registration Form

  • Login
  • Register

Registered Customers
If you have an account, sign in with your email address.
Forgot Your Password?
or

Login with Your Social Profile Login with
Continue with Google
Continue with Facebook
Continue with Apple

Personal Information
Sign-in Information
Password Strength: No Password
Back
or

Login with Your Social Profile Login with
Continue with Google
Continue with Facebook
Continue with Apple
  • Forgot Your Password?

Please enter your email address below to receive a password reset link.
Go back