does bio balls have sponge inside them?

By sponge if you mean porosity then yes. Otherwise there is no sponge in it

what model should i use for a 5ft planted tank

use top filter ,, this is use for that purpose ...search sobo to filter

Can this be used in aquaponics system as bio filter?

We can use in aquarium and result is also nice

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Aquarium Filter Media Kits, Activated Carbon, Bio Ball, Ceramic Ring

Product ID: 78720560

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Details

Brand
CNZ
Item Weight
907 g
Item Form
Granules
Manufacturer
CNZ
UPC
662712840857

🦠Porous ceramic media for max bio-filtration

🧴Activated carbon removes toxins & odors

♻️Polypropylene bio balls boost oxygen levels

Description

💧 Elevate your aquarium’s ecosystem — clarity and health in every drop!

OXYGENATE LIKE A PRO - Bio balls increase dissolved oxygen, promoting vibrant aquatic life
READY TO USE MEDIA KIT - Comes with pre-measured media bags for hassle-free installation and maintenance
ODOR TOXIN ELIMINATOR - Activated carbon efficiently removes odors, medications, and organic pollutants
TRIPLE ACTION FILTRATION POWER - Combines activated carbon, bio balls, and ceramic rings for crystal-clear water
BOOST BENEFICIAL BACTERIA GROWTH - Porous ceramic rings cultivate essential biofilm for a healthy aquarium ecosystem

The CNZ Aquarium Filter Media Kit includes 1 lb of activated carbon, 50 polypropylene bio balls, and 500 g of porous ceramic rings designed to remove odors, toxins, and organic pollutants while enhancing biological filtration and oxygen levels for a thriving aquatic environment.

Specifications

Brand	CNZ
Item Weight	907 g
Item Form	Granules, Powder
Manufacturer	CNZ
UPC	662712840857
Global Trade Identification Number	00662712840857
Country of Origin	India
Item model number	CNZCBR
Product Dimensions	17.78 x 12.7 x 7.62 cm; 907.18 g
ASIN	B00BFIUU74

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