Can it be put in the Fluval C3 Filter?

Yes, you can put it in the c-3 filter, but what I do is pretreat my water in a separate tank with Clearmax to remove the phosphates from our well water. For this I use a 5 gallon tank and a topfin filter, just put the bag of Clearmax where the charcoal filter goes. I use a little salt, and stress coat in the actual tank. I have never had a bad reaction, and my (adult) kids laugh about my tank full of invisible (not rare, just hard to find) fish. I am not aware of any phosphate remover that does not have an iron oxide component.If you issue is not your water source you might look to the food. I found that certain foods spiked the phosphorus levels, oddly enough, in my tank API foods that promised not to cause algae were the biggest problem.

Fluval, the back of the box states it treats 300L. Is this for each 100g pack or does it mean a total of 3 packs?

I am pretty sure it's for each 100g pack. There is no way that any filter for that size tank could hold 3, especially since the bag needs to be weighted down or it will float.

Is one pack of fluval clearmax enough for a 55 gallon tank?

kinda goes by how hi the test are and number of packets use. older tank 55 gallon i would probably use the 3 packs and test 1st day and 35th day

Would this remove the beneficial tannins from Indian Almond Leaves?

so that is a good question. I would think yes. But it really is for older setups

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Fluval Clearmax Phosphate Remover Filters, 3.5 Ounces - 3-Pack

Fluval Clearmax Phosphate Remover Filters, 3.5 Ounces - 3-Pack

Product ID: 225059161

Details

Brand
Fluval
Item Form
Granules
Item Weight
0.33 Kilograms
Liquid Volume
100 Litres
Manufacturer
Fluval

🌊Compatible with Fluval canister filters

🧪Premium-grade resin media

♻️Monthly replaceable 3-pack

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EC$166

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Description

🌟 Elevate your aquarium game with Fluval ClearMax – because your fish deserve the clearest view!

FRESH SALTWATER READY - Versatile resin media designed for both freshwater and saltwater tanks.
TRIPLE PACK CONVENIENCE - Three 100-gram nylon bags ensure continuous water clarity without interruption.
TAILORED FOR FLUVAL FILTERS - Seamlessly fits Fluval Series 06, 07, FX, and more for optimized filtration.
LOW MAINTENANCE HIGH IMPACT - Reduces odors and simplifies aquarium upkeep with monthly easy swaps.
CRYSTAL CLEAR WATER EVERY TIME - Effectively absorbs phosphate, nitrite, and nitrate for pristine aquarium clarity.

Fluval Clearmax Phosphate Remover Filters are premium resin media designed to absorb phosphate, nitrite, and nitrate, enhancing water clarity and reducing odors in both freshwater and saltwater aquariums. Compatible with Fluval canister filters, this 3-pack of 100-gram nylon bags requires monthly replacement to maintain optimal biological activity and aquarium health.

Specifications

ASIN	B0002DHQIY
Allergen Information	Nut Free
Best Sellers Rank	#57,538 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,227 in Water Treatments
Brand	Fluval
Brand Name	Fluval
Customer Reviews	4.6 out of 5 stars 5,025 Reviews
Global Trade Identification Number	00015561113489
Included Components	All Items in Description
Item Form	Granules
Item Type Name	Hagen GREEN-X PHOS REMOVER 3PCH
Item Weight	0.33 Kilograms
Liquid Volume	100 Litres
Manufacturer	Fluval
Manufacturer Part Number	A1348
Model Number	A1348
Net Quantity	3.0 Count
Target Species	Fish
UPC	015561113489 015561113762
Unit Count	3.0 Count

Reviews

S**6

Produit très efficace, l'eau trouble devient limpide !

Faisant confiance aux commentaires positifs, j'utilise ce produit depuis le mois de février 2025. Mon eaux trouble et devenue limpide... (quelques jours suffisent). J'utilise deux sachets de 100 gr pour mon aquarium de 250 litres que je change tous les mois dans ma pompe externe. C'est parfait. Je vous recommande ce produit sans hésiter.

2.10.2025

F**S

Superior product

How fantastic this product is! Huge improvement to the water quality. Does not harm plants. Fish are exxtremely happy, energetic again.

22.05.2026

L**.

Fa il suo lavoro

Arrivato nei tempi scritti e dopo pochi giorni che ho messo nel filtro in acquario mi ha abbattuto completamente i valori dei nitriti e nitrati

10.05.2026

W**L

Fluval Clearmax Phosphatentferner

Gute Ware, alles Bestens

21.02.2025

G**Z

Muy bien

Lo probé y si bajó un tanto, además también se ve más cristalina el agua. Recuerden que si su pecera es de 20 litros, solo pongan 20 gramos y lo ponen en una malla.

11.10.2023

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EC$166

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

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