SEAMLESS SEEDING - Easily replenish half at a time for optimal seeding and growth.
COMPACT EFFICIENT - Perfectly sized at 11.43 x 11.43 x 6.6 cm for any aquarium setup.
USER FRIENDLY DESIGN - No batteries required—just add and watch your aquatic ecosystem thrive.
QUALITY YOU CAN TRUST - Fluval's commitment to excellence ensures your fish stay happy and healthy.
TRANSFORM YOUR AQUARIUM - Experience crystal-clear water with superior biological filtration.
FluvalBiomax 500 g is a premium biological filtration media designed for fish aquariums. It enhances water quality without altering its characteristics, ensuring a healthy environment for your aquatic pets. The easy-to-use granules come in a convenient 500g package, making maintenance a breeze.
Specifications
Pet Type
Fish
Product Dimensions
11.43 x 11.43 x 6.6 cm; 500 g
Item model number
A1456
Item Form
Granules
Allergen Information
Allergen-Free
Colour
White
Size
500 g
Number of Items
1
Quantity
1
Special features
Easy to use
Batteries required
No
Batteries Included
No
Item Weight
500 g
Have a Question? See What Others Asked
Does this go out of date if unused?
Does this work with Fluval u3 internal filter?
Should I put the polishing pads in my filter before or after these rings?
Do I actually need these for a cold/fresh water tank?
Reviews
4.7
All from verified purchases
I**M
Seems good
Had this in my filter for a little while and it seems good. It has a slight brownish colour after a while, so definitely some nice biofilm. I appreciate that it doesn't clog and if you pre-rinse it out of the box it doesn't seem to cloud the tank. Impossible to say really how this compares to other bio-media on the market.
D**E
Value service
Good fits well in my filter
N**H
Seem Ok But Not What I Thought
Hi there all.These will be amazing, so don't let the 4 stars put you off.The reason for the 4 stars are for the fact that my Fluval 206 came with 120g Biomax and is only about 1/3 full on the tray.This Biomax by fluval appears to be a different design.The pieces are approx 1/3 to 1/2 bigger than the pieces of Biomax supplied with the filter.That being said, i still got an additional 150g installed into the tray, (taking me to 270g), where as i would have got maybe 200g with pieces of the same size.It will do the job, but just be weary if you want it to match existing media that comes with Fluval canister filters.As a bonus, my pack received 515g once out the box.
M**W
Large Amount
Plenty here. I get a few uses from each pack, making it great value for money.
M**N
Fish
Okay
P**K
Great Sintered Glass Bio Media, with a proper high absorption rate
I have this media for some time now. What I can say about it, it does indeed absorb water very well. Sintered glass is a really good idea for bio media.I have this mixed with hydroponic pebbles in my SUNSUN 704B Filter. I have three massive trays filled with this and the clay pebbles and the fourth tray as mechanical.I have no issues with bacteria sorting out my nitrogen cycle during any stage of maintenance or water changes. The one bit of advice I would like to give about this product or any other static biomedia is to make sure you're mechanical filtration is hit first coming into your pump ((Course / Medium / Fine) => and then the biomedia. You certainly do not want this getting hit with debris and block it up.If this happens you can always soak the media in H202! It will clean and clear up the pores.The last thing I have to say about this product, it that is is cheap for what it is!!! It's proper sintered glass, with a high density of pores to absorb water. Other media out there that does the exact same thing can be very expensive.
H**X
Fantastic
Bough these as I needed to add some to a few external filters I bought. Not exactly sure what they do, but the seem to work fine. The water is clear and the fish are still alive. What I can say is that the box was a lot bigger than I thought for the price and I would highly recommend this product.
O**H
a quick rinse before use
Can't really go wrong with this stuff. It's top quality and shines above some of the other cheaper products out there. Very little dust in the bag, so a quick rinse before use is all you need. It is more expensive than the rest, but then it does appear to be better.
Common Questions
Trustpilot
TrustScore 4.5 | 7,300+ reviews
Ali H.
Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.
1 day ago
Zainab N.
Fantastic and great service. Shipping was faster than expected.
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I appreciate that it doesn't clog and if you pre-rinse it out of the box it doesn't seem to cloud the tank. Impossible to say really how this compares to other bio-media on the market."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"D***E"},"datePublished":"12 February 2025","name":"Value service","reviewBody":"Good fits well in my filter"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"4.0"},"author":{"@type":"Person","name":"N***H"},"datePublished":"24 August 2018","name":"Seem Ok But Not What I Thought","reviewBody":"Hi there all.These will be amazing, so don't let the 4 stars put you off.The reason for the 4 stars are for the fact that my Fluval 206 came with 120g Biomax and is only about 1/3 full on the tray.This Biomax by fluval appears to be a different design.The pieces are approx 1/3 to 1/2 bigger than the pieces of Biomax supplied with the filter.That being said, i still got an additional 150g installed into the tray, (taking me to 270g), where as i would have got maybe 200g with pieces of the same size.It will do the job, but just be weary if you want it to match existing media that comes with Fluval canister filters.As a bonus, my pack received 515g once out the box."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"M***W"},"datePublished":"22 November 2024","name":"Large Amount","reviewBody":"Plenty here. I get a few uses from each pack, making it great value for money."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"M***N"},"datePublished":"17 September 2024","name":"Fish","reviewBody":"Okay"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"P***K"},"datePublished":"17 September 2019","name":"Great Sintered Glass Bio Media, with a proper high absorption rate","reviewBody":"I have this media for some time now. What I can say about it, it does indeed absorb water very well. Sintered glass is a really good idea for bio media.I have this mixed with hydroponic pebbles in my SUNSUN 704B Filter. I have three massive trays filled with this and the clay pebbles and the fourth tray as mechanical.I have no issues with bacteria sorting out my nitrogen cycle during any stage of maintenance or water changes. The one bit of advice I would like to give about this product or any other static biomedia is to make sure you're mechanical filtration is hit first coming into your pump ((Course / Medium / Fine) => and then the biomedia. You certainly do not want this getting hit with debris and block it up.If this happens you can always soak the media in H202! It will clean and clear up the pores.The last thing I have to say about this product, it that is is cheap for what it is!!! It's proper sintered glass, with a high density of pores to absorb water. Other media out there that does the exact same thing can be very expensive."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"H***X"},"datePublished":"14 March 2013","name":"Fantastic","reviewBody":"Bough these as I needed to add some to a few external filters I bought. Not exactly sure what they do, but the seem to work fine. The water is clear and the fish are still alive. What I can say is that the box was a lot bigger than I thought for the price and I would highly recommend this product."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"O***H"},"datePublished":"17 November 2020","name":"a quick rinse before use","reviewBody":"Can't really go wrong with this stuff. It's top quality and shines above some of the other cheaper products out there. Very little dust in the bag, so a quick rinse before use is all you need. It is more expensive than the rest, but then it does appear to be better."}],"aggregateRating":{"@type":"AggregateRating","ratingValue":4.875,"bestRating":5,"ratingCount":8}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Does this go out of date if unused?","acceptedAnswer":{"@type":"Answer","text":"No, they are ceramic so they don't go out of date."}},{"@type":"Question","name":"Does this work with Fluval u3 internal filter?","acceptedAnswer":{"@type":"Answer","text":"Yes the two are compatible"}},{"@type":"Question","name":"Should I put the polishing pads in my filter before or after these rings?","acceptedAnswer":{"@type":"Answer","text":"I appreciate this is an old question but I wanted to provide an accurate answer.\nThe order of filtration depends on the type/model of filter you have. Some flow water from the top down, others from the bottom up. You should use coarse sponge first to mechanically filter large bits of diet e.g. plant leaves. Then your fine sponge/floss as this is also mechanical filtration. Next is your chemical filtration like carbon (but you should only use this for removing medication; it's not necessary if you set your tank up correctly). Finally your biological filtration I.e. ceramic rings."}},{"@type":"Question","name":"Do I actually need these for a cold/fresh water tank?","acceptedAnswer":{"@type":"Answer","text":"They are a good addition to any filter cold or fresh water, as they provide a large surface area that nitrifying (good bacteria) can attach to, to reduce dangerous ammonia (urine) excreted by fish. However frequent water changes will also help whether or not this media is used in your tank. Google the nitrogen cycle in aquarium for more details. Hope this helps."}}]}]}
