Aquatic Experts Fine Aquarium Media Bag, Durable Drawstring Bags for Fish Tank Filters, 450 Micron Mesh, (Fine, 3″x 8″ – 4 Pack)
$11.99






Price: $11.99
(as of Nov 06, 2025 05:56:23 UTC – Details)
From the brand


Professional Grade Filtration
At Aquatic Experts, aquariums and ponds are not just our business – they are our passion. For over 25 years, Laurren and his team have tested and used countless products, always searching for the ones that deliver consistent, reliable results.
It is our desire and passion to share our success by offering proven quality aquatic products so anyone can be a successful hobbyist.

Aquarium Filter Media
For Crystal Clear, Sparkling Aquariums!
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For Beautiful, Healthy Ponds!
We have the perfect solutions to keep your pond Clean and Beautiful all season long.
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What makes our products unique?
Guided by Laurren, a biologist with over 30 years of hands-on experience, we do more than sell products – we rigorously test them. When the right solution does not exist, we partner with trusted factories to create it ourselves. That is how innovations like our FilterFirst dual-density filter pad were born.
Why do we love what we do?
Every product we offer is built on one promise: proven quality you can rely on. Because at the end of the day, we want you to enjoy your aquarium or pond as much as we enjoy ours. Your success as a hobbyist is our greatest reward.
Is Discontinued By Manufacturer : No
Product Dimensions : 3 x 0.5 x 8 inches; 0.31 ounces
Item model number : 7.59615E+11
Date First Available : July 24, 2017
Manufacturer : Aquatic Experts
ASIN : B0737Z7DQY
Best Sellers Rank: #9,265 in Pet Supplies (See Top 100 in Pet Supplies) #60 in Aquarium Filter Accessories
Customer Reviews: 4.6 4.6 out of 5 stars 2,878 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Versatile Compatibility: Fits small filter media, especially activated carbon, zeolite, peat, crushed coral, and other types of granulated filter media. Will NOT work for very fine resins such as Purigen and CupriSorb, for these use our Extra Fine Mesh Media Bags.
Durability and Reusability: Easy to fill and empty with a top drawstring design. Washable, durable, and reusable.
Optimal Water Flow: Place the mesh bag filled with your chosen media in flowing water. Optimal hole size allows water to flow freely around and through the media. Adjust bag length by partially filling, folding, and tying it off.
Secure Closure: Custom bags prevent loose media from damaging water pumps or filter motors. Safe for both freshwater and saltwater aquariums. 🐠🌊
Customers say
Customers find these filter media bags work well, particularly with phosguard, and appreciate their quality and size, noting they’re perfect for media compartments and don’t obstruct water flow. The bags receive positive feedback for their value, with one customer mentioning they help save money when adding carbon. They are versatile, suitable for a variety of media, and one customer specifically mentions their effectiveness with carbon and phosban. Customers praise their retention capabilities, with one noting they contain minuscule Purigen particles effectively.
9 reviews for Aquatic Experts Fine Aquarium Media Bag, Durable Drawstring Bags for Fish Tank Filters, 450 Micron Mesh, (Fine, 3″x 8″ – 4 Pack)
Add a review
$11.99
Myron Morelock –
Im very pleased.
Very handy, easy to use. Well made. Works great.
oS3R0o –
Perfect for water changes!
I use these 5×9 High Flow bags over my gravel-vac (secured with twist tie) or attached to the hose outlet of gravel-vac. Small critters like Ostracods (seed shrimp) will flow through, but baby shrimp and tiny snails will not… Perfect sized mesh to protect my drains and local waterways!These bags are worth the price, made in USA and are quality. My original ones are still holding up, the only reason I’m ordering more is because I haz more tanks (it happens) :”)
Luis E. Hernandez –
Mesh
Perfect.
Jeff H –
Works very well
Love these filter bags – 4 stars only because thereâs no easy way to ensure that they stay closed. Seems like if youâre going to add strings, might as well add a cinch. Still worth the money!
Daniel mondy –
good fit
good for medium bag filters
Mouse –
Just what I needed
Works just as i needed! They close nicely and do not feel cheap. They hold the amount needed for my 10 gallon tank nicely and safely.You get several of them so its a good deal. Safe for aquariums just make sure you rinse before adding! Highly recommend!
Gail B –
Works perfectly
Works great for my 3 tiered outdoor fountain. I add a little charcoal to the bag and form it to fit the opening to the area where the pump is located. I change monthly and the bags are reusable. The fountain has not been stopped up from trash in the pump since I started using these.
Kham –
Media filter bags
Very well make and good information on product of how to used
Jp –
Ok