SKU: 34814617319

Seachem Flourish Phosphorus

Sale price$108.45 Regular price$120.50
Save 10%

Pay in installments of $30.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 27 - Aug 1

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Seachem Flourish PhosphorusSeachem Flourish Phosphorus Seachem Flourish Phosphorus is a phosphorus supplement for planted aquariums that enhances and accelerates the growth of aquatic plants while being safe for invertebrates and allowing for precise dosing without the risk of overdosing nitrates. Phosphorus supplement for the planted aquarium A safe 4500 mg L solution of potassium phosphate Takes the guesswork out of phosphate dosing Seachem Phosphorus is one of the main three

Seachem Flourish Phosphorus

Seachem Flourish Phosphorus is a phosphorus supplement for planted aquariums that enhances and accelerates the growth of aquatic plants while being safe for invertebrates and allowing for precise dosing without the risk of overdosing nitrates.

  • Phosphorus supplement for the planted aquarium
  • A safe 4500 mg/L solution of potassium phosphate
  • Takes the guesswork out of phosphate dosing

Seachem Phosphorus is one of the main three macronutrients (nitrogen, phosphorous, potassium: NPK) required by plants and can often become the limiting factor to growth in a flourishing system. Flourish Phosphorus™ is a safe solution (4,500 mg/L phosphate) of potassium phosphate that takes the guesswork out of phosphate dosing. Unlike competing products that mix nitrate and phosphate in a fixed ratio, Flourish Phosphorus™ (being nitrate-free) allows you to dose phosphorus according to the needs of your plants without the risk of overdosing nitrates. When used as directed, Flourish Phosphorus™will enhance and accelerate the growth of aquatic plants without enhancing algae growth. For maximum benefit, use with Flourish Nitrogen™ and Flourish Potassium™. Flourish Phosphorus™ is safe for invertebrates such as shrimp.

Directions

BEGINNER: Use 2.5 mL (half a cap) for each 80 L (20 US gallons) once or twice a week or as needed in response to signs of phosphorus deficiency (e.g. stunted growth, plant dark green).

EXPERT: The beginner dose raises phosphorus by 0.05 mg/L (0.15 mg/L phosphate). The ideal phosphate level will vary but generally ranges from 0.15–1.0 mg/L. Use MultiTest™: Phosphate to monitor phosphate levels. To target a specific phosphate increase, dose according to the following formula: 0.8vp=m, where v= volume of the tank in gallons, p=desired phosphate increase, and m=volume of product to use in mL. For example, to raise 20 gallons to 0.1 mg/L phosphate you would use: 0.8*20*0.1=1.6 mL.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34814617319

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 7 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
David Crabtree
Birmingham, US
★★★★★ 5
Randy Clark writes a winner here.
Format: Kindle
An outstanding and well thought through contribution to the 'practicalities' of establishing faith for healing and healing ministry. Its cogently Biblical and practical training for every believer in Jesus to do the same works as He did. Full of inspiring stories, sage advice of years of ministry, and topped off with the benefits of academic research, Randy Clark writes a winner here.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 15, 2016
P
Verified Purchase
Psoriasis patient
Boise, US
★★★★★ 5
SWILLE Sponge Holder for Kitchen Sink - Sink Caddy Organizer with Auto Drain Tray
Color: Black Standard
Nice to have organization at my fingertips. Well made and I love the drainage feature so that we don't have standing water and mold growing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
A
Verified Purchase
Amazon Customer
Massapequa, US
★★★★★ 5
Perfect size
Color: Black Standard
Good quality track, looks very nice in my kitchen. I didn't use the suction cups because I have it sitting on my sink. I like that excess water can drain to avoid and build up of water or soap in the rack. Holds all of my cleaning tools well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
K
Verified Purchase
K Tunn
Phoenix, US
★★★★★ 4
Hanger not secure
Color: Black Standard
Like the holder. The only issue I have is the hanger off the front is not locked in so falls off sometimes when I take the facecloth off the hanger.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2025
A
Verified Purchase
Augusta
West Palm Beach, US
★★★★★ 5
Organization
Color: Black Standard
This sink caddy helps me keep my sponges and dish detergent organized. Plus a few other things I use to clean with. Looks nice on the sink. Well made and study. I recommend this product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 21, 2025

recommand products