Will these work for both freshwater and saltwater?

It can only work for freshwater aquarium. Put it into saltwater aquarium will increase the level of nitrite. So, we do not suggest to use it in saltwater. Thanks.

why will this increase nitrite in saltwater tank? Wouldnt it grow nitrifying bacteria like in fresh water?

Per the instructions not for use in salt water

Has anyone used this as thier only mechanical & bio filter? It says it can be used as both...

I would not. I have mine in a overstocked cichlid tank with a sump. I have sockfilter to remove large debree right before a wall of these blocks

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hygger 6.2-Inch Long Aquarium Bio Media Ceramic Filter Media Blocks for Sump Tank Pond Freshwater Fish Tank Filter Media (7.9 lbs,40-Pack)

Product ID: 131159567

📦bulk 40-pack, 7.9 lbs

🦠thousands of porous bio-holes

🧱6.2-inch ceramic blocks

€ 183.57

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Description

🧫 Elevate your aquarium’s ecosystem with bio-media that means business!

CUSTOMIZABLE FIT - Easily crack blocks to any size, adapting seamlessly to your unique aquarium setup.
MAXIMIZED SURFACE AREA - Thousands of microscopic pores create an expansive habitat for beneficial bacteria growth.
DUAL ACTION FILTRATION POWER - Combines mechanical debris capture with thriving bio-filtration for crystal-clear water.
BULK SUPPLY FOR SERIOUS AQUARISTS - 40 robust ceramic blocks weighing nearly 8 lbs—perfect for large tanks, sumps, and ponds.
VERSATILE FRESHWATER COMPATIBILITY - Optimized for freshwater, planted tanks, and pond ecosystems to keep fish flourishing.

The hygger 6.2-inch ceramic bio media blocks deliver dual mechanical and biological filtration through thousands of porous holes, ensuring crystal-clear water and a healthy aquatic environment. Supplied in a value-packed 40-piece set weighing 7.9 lbs, these versatile blocks can be customized to fit freshwater tanks, sumps, planted aquariums, and ponds, making them an essential upgrade for dedicated fish keepers.

Specifications

ASIN	B07Q3DQPTF
ASIN	B07Q3DQPTF
Best Sellers Rank	#69,349 in Pet Supplies ( See Top 100 in Pet Supplies ) #993 in Aquarium Filter Accessories
Brand Name	hygger
Color	Yellow
Customer Reviews	4.5 4.5 out of 5 stars (613)
Date First Available	July 9, 2019
Date First Available	July 9, 2019
Item Dimensions LxWxH	6.2 x 1.5 x 1.5 inches
Item Package Dimensions L x W x H	14.37 x 9.61 x 7.64 inches
Item Weight	9.28 pounds
Manufacturer	hygger
Manufacturer	hygger
Material	Ceramic
Product Dimensions	6.2 x 1.5 x 1.5 inches; 9.3 pounds
Size	40-Pack, 7.9 lbs
Target Audience Keyword	fish

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€ 183.57

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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Good experience, but the tracking updates could be better.

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