How many needed for 75 gal saltwater fowlr tank?

Every aquarium is different, it depends on filtration type and bio load. Bio load is the first thing to be considered. A 10 gallon tank with 10 fish needs more media than a 100 gallon tank with 1 fish. Generally speaking 1 box of this ceramic media can handle 40gal high bio load / 80gal medium bio load / 120gal low bio load. Saltwater tanks need more media as saltwater fish is more sensitive to ammonia and nitrite compare to freshwater species. Filter types need to be considered as well: Hang on back filter, canister filter or wet dry system require LESS media. Because all water entering filter is pushed through the media, makes the filtration highly efficient. If the media is placed in tank or sump, MORE media is recommended.

Cross section size (approximate)?

Each piece measures 4” x 1 1/8” x 1 1/8”

Should I arrange these vertically to allow for water flow through, for stack horizontally to provide water reisistance?

IMO, if the media is placed in low flow area, arrange it vertically will allow more water to pass through. If flow is strong enough, arrange horizontally will increase contact time. Either way works.

About 8 of the pieces floats and cant get them to sit at the bottom of my tank. Any suggestions?

I silicone mine in together in groups of 6. Just a dab works great

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Ceramic Bio Filter Media Vast Surface Area for Aquarium Sump Canister (1 Box / 24 pcs)

Product ID: 144786027

Details

Brand
Reefing Art
Item Form
Pieces
Item Weight
1.8 pounds
Liquid Volume
1.75 liters
Number of Packs
1

🌊1.75L volume - vast porous surface area

🧩24 pcs per box - complete filtration set

⚗️100% ceramic - non-metallic & aquarium safe

R$361

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Description

🧪 Elevate your aquarium’s ecosystem with next-level bio filtration!

ALL IN ONE PACK - 24 ceramic pieces per box for comprehensive biofiltration
MAXIMIZE WATER CLARITY - Vast porous structure removes ammonia & nitrite efficiently
VERSATILE COMPATIBILITY - Perfect for freshwater, pond, and saltwater tanks
SAFE FOR ALL AQUATIC LIFE - 100% non-metallic ceramic, no heavy metal leaching
PRO GRADE AQUARIUM UPGRADE - Boost your sump or canister filter’s bio-efficiency instantly

Reefing Art Ceramic Bio Filter Media offers 24 high-porosity ceramic pieces per box, providing a vast surface area of 1.75 liters to efficiently remove harmful ammonia and nitrite. Made from 100% aquarium-safe, non-metallic ceramic, this media is ideal for freshwater, pond, and saltwater tanks, ensuring superior biological filtration without any heavy metal contamination.

Specifications

ASIN	B07V1D6LXW
ASIN	B07V1D6LXW
Best Sellers Rank	#35,408 in Pet Supplies ( See Top 100 in Pet Supplies ) #366 in Aquarium Filter Accessories
Brand Name	Reefing Art
Customer Reviews	4.7 4.7 out of 5 stars (807)
Date First Available	July 8, 2019
Item Form	Pieces
Item Weight	1.8 pounds
Item model number	1
Liquid Volume	1.75 liters
Manufacturer	Reefing Art
Manufacturer	Reefing Art
Manufacturer Part Number	1
Model Number	1
Number of Items	24
Number of Packs	1
Package Dimensions	7.36 x 4.76 x 4.49 inches; 1.75 pounds
Pet Type	Fish
Target Species	Fish
Unit Count	24 Count

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R$361

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered 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 Brazil.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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