- Sku: BW‑NPO250
- Vendor: Brightwell Aquatics
Brightwell Aquatics NeoPhos – Balanced Phosphorus Supplement – 250 mL
Brightwell Aquatics NeoPhos – Balanced Phosphorus Supplement (250 mL)
Keep ultra‑low nutrient systems stable by restoring essential phosphorus so microbes and corals can thrive. NeoPhos helps unlock natural nutrient balance and healthier coloration—especially when paired with MicroBacter7 and Reef BioFuel. 🌊🧪
Why Reefers Use It 🌟
- Corrects phosphorus deficiency in ULNS systems to prevent stalled microbial uptake
- Helps microbes assimilate excess nutrients for export by skimming
- Supports zooxanthellae and coral health/colour when used as directed
- Designed to work alongside MicroBacter7, Reef BioFuel/Katalyst, and NeoNitro
Key Features ✅
- Balanced phosphorus source for low‑nutrient marine aquaria
- Clear, consistent dosing framework from the manufacturer
- Pairs with daily/bi‑daily MicroBacter7 for best results
- Made in the USA
How to Use 💧
- Shake well. Determine total system volume (display + sump) and test PO₄/NO₃ first.
- Target: Raise and maintain phosphate to ~0.01–0.02 ppm.
- Step 1: Dose NeoPhos to reach ~0.02 ppm phosphate.
- Step 2: Wait 24 hours and re‑test PO₄/NO₃.
- If no change: System may be carbon‑limited—dose Reef BioFuel 1 mL per 25 gal, wait 24 hours, re‑test.
- Ongoing: Maintain phosphate at ~0.01–0.02 ppm until nitrate stabilizes around ~3–5 ppm, then dose as needed.
- Note: Strength has varied between batches; always follow the current bottle directions.
What’s Included 📦
- 250 mL bottle of NeoPhos
More Information
Item Name | Brightwell Aquatics NeoPhos – 250 mL |
Brand | Brightwell Aquatics |
Manufacturer SKU | BW‑NPO250 |
UPC | 810086016273 |
Volume | 250 mL |
Best Pairings | MicroBacter7, Reef BioFuel or Katalyst, NeoNitro |
Shop Other Sizes / Complements
Have a question?




Brightwell Aquatics NeoPhos – Balanced Phosphorus Supplement – 250 mL