

⚖️ Elevate your reef’s nutrient game — because your corals deserve the best balance!
NeoPhos is a 16.9 fl oz liquid phosphorus source designed specifically for phosphorus-limited, low-nutrient reef aquariums. It precisely balances phosphorus to support beneficial microbial activity, enhancing nutrient cycling and coral health. Engineered for advanced reef aquarists using ultra-low nutrient systems, NeoPhos integrates seamlessly with complementary products like Microbacter7. Proudly made in the USA by Brightwell Aquatics, it delivers scientifically backed, high-quality aquarium care.









| ASIN | B00Y01KY4M |
| ASIN | B00Y01KY4M |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #16,689 in Pet Supplies ( See Top 100 in Pet Supplies ) #148 in Aquarium Water Treatments |
| Brand Name | Brightwell Aquatics |
| Customer Reviews | 4.7 4.7 out of 5 stars (472) |
| Date First Available | January 1, 2010 |
| Date First Available | January 1, 2010 |
| Directions | Shake product well before using. Do not overdose. Results will be most significant when the system is being dosed with MicroBacter7 on a daily or bi-daily basis. 1. Using accurate test kits or calibrated digital testing devices, determine phosphate and nitrate concentrations in system. It is assumed that the phosphate concentration in the system is below detectable limits for the testing method be… |
| Included Components | NeoPhos |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 3 x 1 x 3 inches |
| Item Package Dimensions L x W x H | 7.52 x 2.44 x 2.44 inches |
| Item Weight | 0.6 Pounds |
| Item model number | 810086016280 |
| Item model number | 810086016280 |
| Manufacturer | Brightwell Aquatics |
| Manufacturer | Brightwell Aquatics |
| Model Name | NeoPhos |
| Number of Items | 1 |
| Product Dimensions | 3 x 1 x 3 inches; 9.6 ounces |
| Size | 500 mL |
| Specific Uses for Product | Coat |
| Target Audience Keyword | Fish |
A**R
Great product
Great product. Awesome seller, packaging was great and even included a free sample of food my fish love. Thank you
M**A
Effective!
This is a really good option for low nutrient saltwater tank! It’s does have a little smell in bottle but will not change smells on your tank. Have to be very careful to follow the bottle’s instructions a dose small amounts each day until hitting your target because it performs well! Be careful to monitor your nitrates because they work hand in hand. Calculations are easy to follow - everything is in the bottle. Due to the small mount you really need to raise your levels this bottle is definitely worth your money as it will last a good amount of time.
J**H
Helps keep my phosphates up.
Had a hard time keeping any phosphate in my system. This definitely helps.
A**O
Neophos
Brightwell makes amazing products, but the packaging needs improvement. I’m a frequent customer and have purchased several times on Amazon products I can’t find at my local fish store (LFS). However, I’ve noticed that delivery through Amazon often causes issues with the packaging: the container’s seal is fragile and can break with the slightest impact. In addition, the screw-on lid does not fully secure the contents, making it easy for the product to spill. Unfortunately, today I woke up to find 2 liters of NEOPHOS spilled all over my living room floor. It’s frustrating to lose such a high-quality product due to a packaging flaw. Brightwell should consider a more durable packaging design to prevent these kinds of incidents.
J**7
Works Well - Maybe Too Well?
This product will indeed increase your NO3. Just be careful how much you add. I would recommend using the dosage for HALF your system water volume at first because you may end up bumping nitrates too high. You might avoid dinos, but can accidentally spike algae. Proceed with caution.
B**N
Easy to dose, reliable
I was having no detectable phosphates in my mixed reef tank and my alkalinity was a little high. I lost two acroporas due to the lack of Phosphates. I started using NeoPhos and the remaining 4 all healed and started showing color. I went from a pure green RR Pink Cadillac to a beautiful pink Pink Cadillac just the way it's supposed to look! I've recently added 10 more Acros and all 14 are healthy and happy with th daily doses of NeoPhos to keep my tank on track!
D**R
great
great
K**R
Just what I needed
Quick delivery and does what it says
L**R
Great stuff
B**.
Great product and it's a shame it's not more readily available. Quick delivery and great price. Very impressed with this seller
M**L
If your phosphate is low, then this product is great. Easy to measure when following the instructions
B**K
Great packaging and was very impressed that the bottle was put inside an Aquarium bag and they used a metal type of staple like you would get when ordering fish or Coral online. I bought this because my phosphate zeroed out and while I was waiting for delivery I was able to get the phosphate up to a detectable level so I haven't used the product but at least it's good to have if things do go south again. The seller is great as adult with them before and never had any issues.
Trustpilot
Hace 3 semanas
Hace 2 semanas