I was using Phosguard in a Freshwater tank that has a problem with Diatoms. Now my Java fern is turning yellow and leaves are dieing.

Java ferns are leaf feeders. They love phosphates.

can it be use on hang on back filter? with high flow rate?

I don't see why not, it may reduce the flow some, but if you are having a problem it truly helps. We do a water change once a month and change it every other month. Our tank looks better and the fish have been healthier. Good Lock !

I have some brown algae on my sand bed and green algae on my glass in my 20 gallon lps reef tank. will this help? can it hurt my tank in any way?

Brown algae (diatoms) & green algae can definitely be affected by phosphates & silicas. It won't hurt your tank at all.

Seachem Phosguard Phosphate And Silicate Removal Filter Media For Freshwater

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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2731 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Clear water, zero compromises – your aquarium’s secret weapon!

OPTIMIZED FLOW DESIGN - Bead-shaped granules maximize water contact and filtration efficiency for healthier aquatic environments.
HIGH CAPACITY LOW VOLUME - 100 ml treats up to 60 US gallons, delivering powerful filtration without bulky media bags.
KEEP YOUR TANK ALGAE FREE - Prevents phosphate buildup that fuels algae growth, ensuring your aquarium stays vibrant and clean.
CRYSTAL CLEAR AQUARIUMS FAST - Rapidly eliminates phosphate and silicate to prevent algae bloom and maintain pristine water clarity.
TRUSTED MARINE FRESHWATER SOLUTION - Engineered for both freshwater and marine tanks, outperforming all competing phosphate removers.

Seachem Phosguard is a premium phosphate and silicate removal media designed for both freshwater and marine aquariums. Its highly porous, bead-shaped granules ensure optimal water flow and rapid contaminant removal. Each 100 ml bag effectively treats up to 60 gallons, outperforming competing products to keep your aquatic environment crystal clear and algae-free.

Specifications

ASIN	B00029PO6O
Allergen Information	Yam Free
Best Sellers Rank	#23,183 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,320 in Aquarium Accessories
Brand	Seachem
Brand Name	Seachem
Country of Publication	USA
Customer Reviews	4.5 out of 5 stars 1,954 Reviews
Global Trade Identification Number	00000116018500
Included Components	all
Item Form	Granules
Item Type Name	Filtration Media
Item Weight	0.07 Kilograms
Item form	Granules
Item weight	0.07 Kilograms
Liquid Volume	100 Milliliters
Liquid volume	100 Milliliters
Manufacturer	Seachem Laboratories, Inc.
Manufacturer Part Number	185
Model Number	185
Number of Items	1
Number of Packs	1
Pet Type	Fish
Target Species	Fish
UPC	000116018500
Unit Count	1 Count
Unit count	1 Count

Reviews

J**N

Wrong Item

Got the wrong item, gave me Seachem Purigen instead of seachem Phosguard. Not happy with it

20.03.2021

Z**L

Top

Top produkt,👍 Ich bin sehr zufrieden.

3.05.2025

J**N

Cumple con lo esperado

Encantado con el producto cumple perfectamente su cometido!

28.01.2021

A**N

Best Seachem Products

Original Seachem product. My water had a lot of phosphates and had diatom nightmare and this product reduced a very little bit. The best thing I recommend installing a UV filter will kill floating diatom to some extent and control it by doing more water changes. The seller is a good and genuine Seachem product

22.07.2021

K**L

Works well

Works well prefer already bagged

4.07.2026

M**K

Works

Brilliant stuff 👏

28.06.2026

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Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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2731 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered 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 Iceland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

View all Trustpilot reviews

Seachem Phosguard phosphate & silicate removal filter media for freshwater & marine aquarium, 100 ml Bagged

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Details

Description

Specifications

Reviews

Common Questions