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Fluval

Q: Does this go out of date if unused?

No, they are ceramic so they don't go out of date.

Q: Should I put the polishing pads in my filter before or after these rings?

I appreciate this is an old question but I wanted to provide an accurate answer. The order of filtration depends on the type/model of filter you have. Some flow water from the top down, others from the bottom up. You should use coarse sponge first to mechanically filter large bits of diet e.g. plant leaves. Then your fine sponge/floss as this is also mechanical filtration. Next is your chemical filtration like carbon (but you should only use this for removing medication; it's not necessary if you set your tank up correctly). Finally your biological filtration I.e. ceramic rings.

Q: Do I actually need these for a cold/fresh water tank?

They are a good addition to any filter cold or fresh water, as they provide a large surface area that nitrifying (good bacteria) can attach to, to reduce dangerous ammonia (urine) excreted by fish. However frequent water changes will also help whether or not this media is used in your tank. Google the nitrogen cycle in aquarium for more details. Hope this helps.

Product ID: 48157806

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Details

Brand
Fluval
Liquid volume
500
Item weight
0.57 Kilograms
Item form
Granules
Manufacturer
Rolf C Hagen

💧Maintains natural water balance

🧬Superior biological filtration

⚖️Optimal 500 g granule size

Frequently Bought Together

Fluval BioMax Biological Material Remover, 500 g - Biological Filter Media for Aquariums

Fluval Carbon Filter Media for Aquariums, Premium Bituminous Carbon Inserts, 100-gram Nylon Bags, 3 Count (Pack of 1), A1440

Fluval Zeo-Carb, Chemical Filter Media for Freshwater Aquariums, 150-gram Nylon Bags, A1490 , White, All Breed Sizes, pack of 1 (3 count)

Description

🧫 Elevate your aquarium’s ecosystem with FluvalBiomax – where science meets serenity!

GENEROUS 500 G PACK - Perfect size for sustained filtration in medium to large tanks
SMART SEEDING STRATEGY - Replenish only half at a time to maintain optimal bacterial growth
WATER CHEMISTRY FRIENDLY - Won't alter your aquarium’s delicate water parameters
EFFORTLESS AQUARIUM HEALTH - Easy-to-use granules that boost your tank’s ecosystem without hassle
PRECISION FILTRATION POWER - Advanced biological filtration ensures crystal-clear, healthy water

FluvalBiomax 500 g is a premium biological filtration media designed to enhance aquarium water quality by promoting beneficial bacterial growth. Its easy-to-use granules maintain natural water characteristics and support a healthy aquatic environment, making it ideal for medium to large fish tanks.

Specifications

Pet Type	Fish
Product Dimensions	11.43 x 11.43 x 6.6 cm; 570 g
Item model number	A1456
Item Form	Granules
Allergen Information	Allergen-Free
Colour	White
Size	500 g
Number of Items	1
Quantity	1
Special features	Easy to use
Batteries required	No
Batteries Included	No
Item Weight	570 g

Have a Question? See What Others Asked

Does this go out of date if unused?

Does this work with Fluval u3 internal filter?

Should I put the polishing pads in my filter before or after these rings?

Do I actually need these for a cold/fresh water tank?

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