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Red Sea Fish Pharm ARE22203 NO3:PO4-X Biological Nitrate and Phosphate control for Aquarium, 500ml/16.9 fl. 0z

4.6 4.6 out of 5 stars 461 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Aquarium Water Treatments by Red Sea

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Purchase options and add-ons

Brand Red Sea
Liquid Volume 500 Milliliters
Item Weight 1 Pounds
Item Form Liquid
Target Species Fish

About this item

  • Country Of Origin: United States
  • The Package Length Of The Product Is 3 Inches
  • The Package Width Of The Product Is 3 Inches
  • The Package Height Of The Product Is 8 Inches

Customer ratings by feature

Value for money
4.0 4.0
Easy to use
3.9 3.9

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$27.45
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Product Description

Red Sea Fish Pharm ARE22203 NO3: PO4-X Biological Nitrate and Phosphate Reducer for Aquarium, 500ml

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 3.15 x 7.87 x 3.15 inches; 1 Pounds
  • Item model number ‏ : ‎ 306049
  • Date First Available ‏ : ‎ December 10, 2010
  • Manufacturer ‏ : ‎ TopDawg Pet Supply
  • ASIN ‏ : ‎ B006L48D3U
  • Customer Reviews:
    4.6 4.6 out of 5 stars 461 ratings

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Directions

use as directed

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Red Sea Fish Pharm ARE22203 NO3:PO4-X Biological Nitrate and Phosphate control for Aquarium, 500ml/16.9 fl. 0z
Red Sea Fish Pharm ARE22203 NO3:PO4-X Biological Nitrate and Phosphate control for Aquarium, 500ml/16.9 fl. 0z
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Price$27.45$32.77-17% $30.58
Typical:$36.91
$105.97$139.99-7% $20.00
Typical:$21.49
Delivery
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Get it as soon as Tuesday, Apr 2
Customer Ratings
Value for money
4.0
4.5
4.4
Easy to use
3.9
4.5
5.0
Sold By
MEET YOUR NEEDS
BEYOND YOUR HOME
Best WH
Asavvysavers
Endlessmart
Top Value Brands!
target species
Fish
Fish
Fish
Coral
liquid volume
500 milliliters
1000 milliliters
1 liters
5 liters
8.45 fluid ounces
500 milliliters
form
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
weight
1 pounds
1 pounds
1 pounds
1 pounds
0.77 kilograms

Customer reviews

4.6 out of 5 stars
4.6 out of 5
461 global ratings

Customers say

Customers like the nitrate and phosphate levels of the product. For example, they say it works well to reduce nitrites and phosphorus in problem tanks. They also appreciate the ease of use and quality of the carbon. That said, some complain about the expiration date.

AI-generated from the text of customer reviews

41 customers mention35 positive6 negative

Customers like the nitrate levels of the pet supplies. They say it eliminates nitric and phosphate completely, works to reduce natrate in problem tanks, and reduces a nits to zero. Some say that it works pretty fast to lower narates.

"...It's going to promote extra bacterial growth, which will in turn metabolize phosphates and nitrates and bring those terrifying numbers back into an..." Read more

"Title says it. It flat works to control nitrates and phosphates...." Read more

"...bacteria overtook my Ammonia consuming bacteria, but my ammonia levels are still great and the jellyfish seem as happy as can be; more active than..." Read more

"The best ever nitrate remover. You can't go wrong with red sea products...." Read more

33 customers mention29 positive4 negative

Customers like the performance of the carbon dosing. They mention that it works wonders, it works well if you stick with it, and it works great on freshwater tanks. It also helps to lower NO3 and PO4 levels over time.

"...Works well if you stick with it! Don't expect overnight results. These things take time!!" Read more

"...It seems to work OK but you really have to keep up on it and treat your tank daily for it to be effective." Read more

"...Instructions were a little confusing at first. This stuff works amazing. Lowers your nitrates pretty fast...." Read more

"...This stuff works great but creates a lot of mulm...ghostly snot looking webs in my tank, that are thick...." Read more

17 customers mention12 positive5 negative

Customers find the directions for using the pet supplies pretty straight forward. They say it's easy to make your own and a breeze to dose manual or on auto dosing with a dozer. Customers also say it makes it easier to be an aquarist and helps with water parameters.

"...This product dumbs it down for the rest of us and makes it a relatively easy task...." Read more

"...or so to dial into your systems need but one you dkk on it’s a breeze to dose manual or on auto dose with a dozer. It’s consistant as could be...." Read more

"...Instructions were a little confusing at first. This stuff works amazing. Lowers your nitrates pretty fast...." Read more

"...I found the directions to be pretty straight forward. YOU MUST RUN A SKIMMER WITH THIS PRODUCT...." Read more

17 customers mention17 positive0 negative

Customers are satisfied with the quality of the pet supplies. They mention it's a great product and awesome.

"This stuff is awesome. I had a nitrate problem that I could not get under control with water changes alone...." Read more

"It's amazing product. I've had nitrates at about 50-70 ppm...." Read more

"Would strongly recomend this product! It's awesome, brought my no3 down from 20-30 to 1-2 in 5 weeks and i now have total control of where they sit...." Read more

"excegreat product, it does its job perfectly !!llent products" Read more

4 customers mention4 positive0 negative

Customers are satisfied with the strength of the pet supplies. They mention that it is very strong, consistent, and lasts a long time.

"...It’s consistant as could be. Highly recommend to anyone with nitrates or phosphates out of control as mine were." Read more

"...Since I low dose it lasts a very long time." Read more

"This stuff is really strong so be careful when using it but it is extremely effective. I noticed a slight difference in just about 5-7 days." Read more

"...to use it, try the half of recommended dose and this chemicals is very strong, not like other things I used before. Be very careful." Read more

8 customers mention4 positive4 negative

Customers are mixed about the clarity of the product. Some mention that it causes much clearer water, while others say that it can cause a bacteria bloom that causes cloudy water.

"...But I DO see much clearer water and coral polyp extension has been great, so I'm gonna go ahead and call that a win for this particular product...." Read more

"...Can cause a bacteria bloom, causing cloudy water but clears in less than day...." Read more

"...No more algae and my tank never looked so good, sparklingly clear water...." Read more

"...It did take a few weeks(for me 3) and the tank looked cloudy for a day or two but OMG we all know how hard Is to get rid of nitrates...." Read more

5 customers mention2 positive3 negative

Customers are mixed about the side effects of the pet supplies. Some mention that it works with no visible ill effects on any live stock, while others say that it's foul, nasty, and poisonous.

"...to open the doors and windows when I clean the cup because this stuff is so foul...." Read more

"...The product had no visible ill effects on any live stock...." Read more

"...It's nasty and all in my overflows, in sump with some on rock as well. Looks like someone with the flu blew their nose in my overflows a few times...." Read more

"...Definitely works. It takes about a week to see results. No side effects on (saltwater) fish, cleaner shrimp, crabs, feather dusters, ect.!" Read more

10 customers mention0 positive10 negative

Customers are not happy with the pet supplies. They say it killed all their fish and many of their corals. They also say the product is unsafe for fish and can be toxic.

"...The following morning to my dismay, every single thing was dead...." Read more

"...This product can be toxic so care should be taken as to the dosage and location of introduction to your aquarium (add to sump if possible)...." Read more

"...HIGH and nitrate levels were still high, but because the nitrite is very toxic, that was the cause of the dead...." Read more

"...Horrible product, killed all my fish after 1 dose...." Read more

It Works, but with great effort!
5 Stars
It Works, but with great effort!
It takes precision measures and patience. My skimmer had to be tuned in very accurately. The fish NEVER likes the dose! They ALWAYS freak out about 10 minutes after dosing! BUT the brown algae is essentially gone!
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