Can this be diluted with rodi water?

I know of several reef keeper who dilute with rodi water when using smaller doses, although I would contact Red Sea for the right mixture

I am running vinegar for nitrate reduction. How long do I need to stop the vinegar before I start this??

Suggest you call Red Sea. Their customer service with this product is helpful. Alternatively, you can also send an email. I've used both methods in successfully communicating with them.

Does this take longer for large tanks? I have 150 gallon s with a 68 gallon sump.

tank size does not matter I have 180, and I dose it with a dosser which is the best way to reduce nitrates, this stuff is excellent....it will take a while for the bacteria to form (should not be more than a month) , you will notice first a white film on your glass, once that starts the bacteria is growing and the white will disappear, the fish and snails love the bacteria. Again it needs to be done daily and your nitrates can be either gone, or reduced down to nothing if you prefer to have just a small amount. Again a dosser is the best method Jaebo cheap and works well under 60.00 Hope this helps

Can this be used in a freshwater aquarium?

It is suggested to use for salt water aquarium

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Red Sea NO3:PO4-X, Nitrate and Phosphate Reducer, 1 Liter

Red Sea NO3:PO4-X, Nitrate and Phosphate Reducer, 1 Liter

Product ID: 2334538

Details

Brand
Red Sea
Item Form
Liquid
Item Weight
16 ounces
Liquid Volume
1000
Unit Count
1 Count

⏳Gradual 3-4 week effect

💧1 Liter liquid formula

⚙️Precision nitrate reduction

€ 126.21

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Description

💧 Master your aquarium’s balance with precision and ease!

TRUSTED BY ENTHUSIASTS - Backed by 844 reviews and a solid 4.5-star rating, a proven choice for aquarium pros.
EFFORTLESS NITRATE CONTROL - Slow and steady dosing for safe, effective nitrate reduction without shocking your aquatic ecosystem.
OPTIMIZED FOR SENSITIVE AQUARIUMS - Gentle enough for delicate corals and large FOWLR setups, ensuring balanced water chemistry.
COMPATIBLE WITH PHOSPHATE REMOVERS - Use alongside phosphate treatments like PhosGuard or GFO without any interference.
CONTINUOUS SKIMMER SUPPORT RECOMMENDED - Maximize results by pairing with a 24/7 protein skimmer for crystal-clear water.

NO3:PO4-X by Red Sea is a 1-liter liquid nitrate reducer designed for saltwater aquariums. It works gradually over 3-4 weeks to safely lower nitrate levels without harming sensitive corals or fish. Compatible with phosphate removers and recommended for use alongside a protein skimmer, this product is highly rated by aquarium hobbyists for effective, controlled water treatment.

Specifications

ASIN	B004FUEAEI
ASIN	B004FUEAEI
Best Sellers Rank	#27,355 in Pet Supplies ( See Top 100 in Pet Supplies ) #234 in Aquarium Water Treatments
Brand Name	Red Sea
Customer Reviews	4.5 4.5 out of 5 stars (850)
Date First Available	December 10, 2010
Global Trade Identification Number	00730773222049
Is Discontinued By Manufacturer	No
Item Form	Liquid
Item Weight	16 ounces
Item model number	306050
Liquid Volume	1000 Milliliters
Manufacturer	Red Sea
Manufacturer	Red Sea
Manufacturer Part Number	306050
Model Number	306050
Pet Type	Fish
Product Dimensions	3.54 x 9.84 x 3.54 inches; 1 Pounds
Target Species	Fish
UPC	730773222049
Unit Count	1 Count

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€ 126.21

Duties & taxes included

In stock

Sold byAmazon CroatiaDelivered 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 Croatia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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