5 out of 5
BA01682 Brightwell Aquatics XPort Bio Brick
Rating 5 | 11 reviews
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Product Description
Use one XPort Bio Brick for every 1,000 U.S. gallons of system capacity, more for heavy bio loads. Rinse material well with aquarium water or purified tap water. For superior results, seed the material using FlorinBacter or MicroBacter7 as appropriate for your aquarium.
- 9" x 4.5" x 2.5"
- Highest porosity and largest useable surface area, per unit weight or volume, of all filtration media available anywhere
- Provides huge amounts of aerobic and anaerobic surface area for efficient bacterial colonization.
- Provides over 71,000 square feet (6,596 square meters) of surface area per liter of medium. One brick has about 100,000 square feet of useable surface area for bacterial colonization.
- When properly colonized, and used as directed, it will reduce toxic ammonia and nitrites to near zero in ponds and all aquariums, marine or fresh.
- Also reduces phosphate significantly and dissolved organics.
- Works excellently as the only filtration medium for the aquarium or pond or may be employed in addition to other filtration media.
- Doped with Aragonite to buffer pH at the bacteria level, preventing acid buildup which eventually would kill the bacteria and reduce capacity. (Which is what happens in competing products)
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Customer Reviews
By Nephtaly Ortiz
Date: October 17, 2025
Est funcionando muy bien, como lo esperaba todos lo recomiendan as que yo tambin,son cinco estrellas para el bloque!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By A Customer
Date: July 18, 2025
This is great and not too big for any size sump.
Rating: 
[4 of 5 Stars!]
[4 of 5 Stars!]
By penname
Date: May 20, 2025
I put as many of these in my sump as I can. Great for keeping numbers low.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By K woods
Date: January 14, 2024
Tried a generic alternative and huge regrets. The generic caused massive silica spike and of course tons of brown slime everywhere in the tank because of it. Absolutely 0 issues with this product and also 0 regret. I learned my lesson the hard way.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Buyers
Date: June 01, 2023
I was not sure about this. Sounds to easy. But I have a reef tank with high nitrates, very high nitrates. While cleaning my sum, I discovered and old mesh bag in the back corner that had some de nitrafier. It sat there for years just building up detritus and other nasty stuff. I cleaned it out real good and place the brick in the flow tray. Still to soon to tell if it actually makes a difference. Will update in a few months
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By EM
Date: April 27, 2023
For some reason the brick I purchased was defective. The Brick will float and will not sink down. I wrote an email to customer service and they handled the situation professionally. They answered all my questions and without hesitation they sent me a replacement. I absolutely recommend this brick. I'm using 2 bricks in my tank. I'm using the NO3 totally submerged in the sump (anaerobic) and the Bio Brick I decided to take out of the water and run water through it controlling the flow with a valve .I thank Jack and the whole team for promptly responding. very professional
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]