How is this used exactly? is it genuinely effective at reducing nitrate levels? my ammonia and nitrite levels are a perfect 0ppm. thank you!

Yes it does work I used it for months without an issue. My levels reduced as tap water was high I got a 75% reduction but don’t take that as you will get the same results

I have a sponge filter (shrimp tank) with nowhere to put this in the filter. Can I just put it directly into the tank?

Yes although it's not ideal. Generally bacterial media is kept free of stritus by mechanical filter media, you can't do that if it's lose in the tank. If you have choice I'd certainly give it a go and see how it works.

May I put 4l in a fluval fx6 to replace filter media ?

I tried this about 12 months ago not worth the money at all didn’t make much difference to my water quality and most the media is hard grey stone which is basically just stone and has no use in your filter at all. My advice would be go with alphagrog e25 as it’s only £23 for 20 kg and is much better I now have a mix of alphagrog and bio home ultimate and won’t look back. This is just my opinion good look with what ever media you choose to go with

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Matrix Bio Media, 1 Litre

Product ID: 48995660

Details

Brand
Seachem
Item form
Solid
Item weight
757 g
Liquid volume
1 Litres
Number of Packs
1

🦠Supports aerobic & anaerobic bacteria

🧪High capacity bio filtration

⚙️Controls ammonia, nitrite & nitrate

COP 195984

Duties & taxes included

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧬 Elevate your aquarium’s ecosystem with Seachem Matrix – where science meets clarity!

PRECISION DOSAGE - Use 250ml per 100L water for optimal filtration performance.
TRIPLE TOXIN CONTROL - Effectively neutralizes ammonia, nitrite, and nitrate for a healthier tank.
TRUSTED BY THOUSANDS - Join 7,000+ happy aquarists who rate it 4.7 stars for consistent results.
DUAL BACTERIA SUPPORT - Fosters both aerobic and anaerobic bacteria to maintain balanced ecosystems.
ULTIMATE BIOFILTRATION POWER - Maximize water clarity with 1 litre of premium Matrix media.

Seachem Matrix Bio Media is a 1-litre solid filtration media designed to enhance aquarium water quality by supporting beneficial aerobic and anaerobic bacteria. It efficiently controls harmful ammonia, nitrite, and nitrate levels, ensuring a balanced and healthy aquatic environment. Ideal for professional and hobbyist aquarists seeking reliable, high-capacity biofiltration.

Specifications

ASIN	B0002A5VIO
Allergen Information	Gluten Free
Best Sellers Rank	6,286 in Pet Supplies ( See Top 100 in Pet Supplies ) 64 in Aquarium Water Treatments
Brand Name	Seachem
Country Of Origin	USA
Customer Reviews	4.7 4.7 out of 5 stars (7,002)
Global Trade Identification Number	00000116011709
Included Components	All
Item Form	Solid
Item Type Name	Aquarium Filtration Media
Item Weight	1.67 Pounds
Liquid Volume	1 Litres
Manufacturer	Seachem
Manufacturer Part Number	117
Model Number	117
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Reptile
UPC	000116011709 716184580831
Unit Count	1000.0 millilitre

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TrustScore 4.5 | 7,300+ reviews

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