Great Aquariums Start Here
Live Chat Support
    Free Shipping
  • FREE Shipping ON $75+
  • 14-Day Low Price Guarantee
  • Low Price Guarantee
  • Same Day Shipping
  • Same Day Shipping
99% of items we carry qualify for FREE SHIPPING in the contiguous United States if you spend $75 or more. Learn More
If you find a product we sell for a lower price at another online store, we will match their price to ensure you always pay the lowest amount when you shop with us. Learn More
Same Day Shipping
We promise to ship your order as fast as humanly possible. In fact, 99% of orders placed before 2 pm EST ship the same day! Learn More
Home » Saltwater Aquarium Supplies  » Additives & Supplements  » Specialty Supplements  » Phosphate Removers  »  Blue Life Phosphate Rx 1oz
Blue Life Phosphate Rx 1oz

Blue Life Phosphate Rx 1oz

Average Rating 4.5 13
Write A Review
Product Review
We value your opinion & experience
Thank you for taking the time to review our products!

This is a Product Review for: Blue Life Phosphate Rx 1oz
Name to display on the review:
Location (ex: Anaheim, CA):
Your experience level:
How would you rate this product?
Review Title:
Write your review:
(Please focus on product quality and performance)
In Stock: Buy now and your order will ship the next business day
This item is in stock in our East and West Coast warehouses
Item #:
MSRP: $32.95
You Save: $5.96 (18%)
Notify Me
Just enter your email address below and we'll let you know when the product you are looking for becomes available!

Item Code:
Your Email:
Add to Cart or Notify Me
This item is temporarily unavailable but will be back in stock soon.

Item #
Click the Add To Cart button below if you'd like to reserve this item today. Any other items included in your order will be immediately processed and shipped. We will ship this item separately as soon as it arrives. We will not charge you for this item until it ships and you will incur no additional shipping charges.
Enter your email address in the field below and click the Notify Me button if you'd like us to send you an email when this item becomes available. Although you will be immediately notified when we have stock on hand, we will not reserve any units for you; you must return to our website and place an order.

+ Add to Wishlist
Add to Wishlist
Select Wish List:
Comments (up to 200 characters):
Quantity Desired:
Quantity Received:
FREE Shipping Promo offers FREE standard ground shipping via UPS on orders of $75 or more for orders containing non-overweight or oversize items (orders which do not qualify for our FREE shipping promotion will still be shipped at a discounted rate).

Terms and Exclusions:
  • Offer valid only on orders shipping within the contiguous United States. Orders shipping to Alaska, Hawaii, Puerto Rico, Guam or other US Territories do not qualify for this promotion.

  • This promotion does not apply to items requiring expedited shipping, such as refrigerated products, frozen products or live rock.

  •'s FREE shipping promotion does not include products sent in oversized or particularly heavy boxes. This may include but is not limited to aquariums, canopies, chillers, external water pumps, metal halide magnetic ballasts, stands and substrate/sand. These items may be subject to additional shipping handling charges. Should shipping surcharges apply, they will be noted on individual product pages and / or displayed during check-out. We will, however, pay a portion of the shipping charges for these orders.

  • Shipping surcharges, such as special handling are NOT covered under the FREE shipping promotion.

  • Shipping charges for returned merchandise is non-refundable. Please read's Return PolicyPolicy for more information.

  • Price matched (Low Price Guarantee) or discounted orders do NOT qualify for our free shipping promotion.
If you find a product we sell for a lower price at another online store, we will match their price to ensure you always pay the lowest amount when you shop with us.

Enter the price, shipping cost and website address where you found the lower price. Then click the "Add to Cart" button. We will review the lower price while processing your order and make any necessary reductions before your order ships. Some restrictions apply. See Terms & Conditions.
Shipping Cost*
Competitor's Website*
*Required information
Marine Depot 60-day Returns
At Marine Depot, we stand behind our products. That is why we offer a 60-day return period: one of the best in the industry! Learn More

Blue Life Phosphate Rx 1oz Information

Product Manuals & Documentation

Phosphate Rx:

Phosphate Rx is an amazingly simple and effective product that has revolutionized the way phosphates are removed from saltwater and freshwater aquariums. Regular use of Phosphate Rx increases vitality, color and growth of your aquarium’s inhabitants. Phosphate Rx is Veterinarian Approved, and has been used by leading Public Aquariums, Livestock Wholesalers, Retailers and Hobbyists.

TEST YOUR AQUARIUM`S PHOSPHATE LEVEL PRIOR TO USE.It is recommended to maintain phosphate levels below 0.03ppm. Six drops of Phosphate Rx will lower your phosphate by .5 ppm for every 10 gallons (37.9L) of water. DO NOT LOWER YOUR PHOSPHATES MORE THAN .5 ppm IN A 24-HOUR PERIOD. For best results, add in high flow areas, one drop at a time. Some temporary cloudiness may occur when adding this product. Cloudiness will clear within 24-hours. For accurate results, wait 24-hours before retesting your phosphate level. Wait ten minutes before dosing other supplements. Test regularly and treat as necessary.

This product is not intended for human consumption. Keep out of reach of children. If ingested, contact a physician or poison control center immediately.

1oz. (30ml)

Manufacturer Info

Blue Life USA Aquarium Supplies
Blue Life USA is committed to providing the highest quality aquarium products available. Their staff has a combined 100 years of experience as hobbyists, retailers, industry professionals, chemists and veterinarians. Blue Life USA’s vision is to enhance the enjoyment of aquarium hobbyists by offering the next generation of products that will help create and maintain thriving, vibrant and crystal clear aquariums. With an unyielding dedication to integrity and responsibility, Blue Life USA raises the bar for this generation and future generations of aquarium product manufacturers.

Blue Life Phosphate Rx 1oz Reviews

Average Rating
(13 reviews)
Sort Reviews By:
of 2

Decent, I think.

Reviewers Rating Great

Posted: 9/22/2016 from USA
3.5 5
Experience Level: Expert

Comments: So, I have this clear-short-fuzz algae growing on high lit areas. I have been dosing this for a good week and no noticeable difference. So I am back to the drawing board: siphon out detritus, blow out rocks and weekly water changes to potentially kill the fuzz. I will augment my procedure with this product as it is super easy to use.

Did you find this review helpful? Yes No

Can stress fish

Reviewers Rating Average

Posted: 7/16/2012 from Somerville, MA UNITED STATES
2.5 5
Experience Level: Intermediate

Comments: This product removes phosphate very well by precipitating out phosphates. I used less than 1/5 of the max amount listed. My fish were notably stressed. My Pacifiv blue tang was near death for several days. He managed to survive but I was very surprized My more robust fish were not excited about the change but they were OK. I would not recomend this product for aquarists with "tricky" fish.

2 of 6 People found this review helpful, did you? Yes No

Great Stuff

Reviewers Rating Excellent!

Posted: 5/5/2010 from MIDDLE VILLAGE, NY UNITED STAT
5.0 5
Experience Level: Intermediate

Comments: I was dieing with black beard algae. Everything was being choked and I found out that my tap water was also loaded. I also over feed a little but it is OK because I can maintain low phosphate with this product

2 of 3 People found this review helpful, did you? Yes No

Works Good But Not Great

Reviewers Rating Average

Posted: 11/8/2009 from RIVERSIDE, CA UNITED STATES
3.0 5
Experience Level: Expert

Comments: This product works good but not great. It will not get my phosphates to 0.

Did you find this review helpful? Yes No

effective product

Reviewers Rating Excellent!

5.0 5
Experience Level: Intermediate

Comments: I have used a variety of phosphate removal medias. They all help, but this product really reduces the phosphates quickly. My phosphates went from 0.04 to 0.00 in two applications at half strength. Some zoos recoiled for a few days, but recovered. The phosphate removal medias held the phosphates down. This product is a good one to get phosphates down below the .03 recommendation. I use it occasionally to keep the phosphate level at zero.

2 of 2 People found this review helpful, did you? Yes No

It just works

Reviewers Rating Excellent!

Posted: 10/9/2008 from REDMOND, WA UNITED STATES
5.0 5
Experience Level: Expert

Comments: Not many products around today that you can say that about. After reading the 1st post I was a bit cautious but a little checking indicated that the information was likely user error than product error. I dosed into the return from my skimmer chamber, the water did get a little cloudy but when the clouds cleared so did the PO4. In my case I had a return pump fail (while I was away) and came back to a diatom outbreak and PO4 at .15; in 2 doses (1/2 bottle each) over a couple days the diatoms where gone, and the PO4 was down to .04. I now run a Deltec FR509 with 1 ltr of Rowaphos loaded to keep levels down but I keep a bottle of Blue Life Phosphate Control around for emergencies!

4 of 4 People found this review helpful, did you? Yes No

Blue life phosphate control

Reviewers Rating Below Average

Posted: 5/16/2008 from SOUTH CHINA, ME UNITED STATES
2.0 5
Experience Level: Intermediate

Comments: I was hoping this would be a great product. I dosed at half the amount being really careful of my corals. My zoo's retracted and still aren't the same. I did an emergency water change and put carbon in my diatom and ran that. It did help some. It will be awhile before they recover, even at half dose. I will say this, it did actually get rid of some of my flat worms. That night they were being sucked in out of the system. My corals are too important to me to use that so less feeding, continue rinsing any frozen foods that use phosphate in the binding process, more water changes. At least I didn't loose any livestock. I carefully monitored the situation, as I would any medications.

2 of 6 People found this review helpful, did you? Yes No

So Far So Good

Reviewers Rating Excellent!

Posted: 5/9/2008 from VISALIA, CA UNITED STATES
5.0 5
Experience Level: Beginner

Comments: I was a little worried about using this product, so I cut back the dose to slowly make the change in Phosphate level come down. So far atfer 10 days everything looks good, and I have seen no aftereffects. Much easier than a sponge product.

1 of 1 People found this review helpful, did you? Yes No


Reviewers Rating Excellent!

Posted: 3/23/2008 from ELYRIA, OH UNITED STATES
5.0 5
Experience Level: Beginner

Comments: works great, a little pricey but well worth it.

Did you find this review helpful? Yes No

Phoshate Control

Reviewers Rating Excellent!

5.0 5

Comments: This is the EASIEST phosphate product I have ever heard of and IS easy to use. Drop...drop...drop...IT IS that easy. Oh by the way, took my phoshates from 1.0ppm to 0.00ppm in 3 days!

9 of 10 People found this review helpful, did you? Yes No

of 2
WIN A MEDIA REACTOR! Sign up for hot deals, helpful videos, and a chance to win an Accel Aquatics FR-30 Media Reactor!