Best in 7 days
Pay in installments of $31.25 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Sep 19 - Sep 24
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Silphos 400 g (14 oz.)Tunze Silphos 400g (14 oz.) is an iron based phosphate and silicate remover for freshwater and marine aquariums. The high capacity formula effectively bonds and removes phosphates and silicates, reducing nutrients that fuel unwanted algae growth. Provides long term nutrient control to maintain clean, clear water and a healthy aquatic environment. Specifications: Category: Aquarium Filtration Media Brand: Tunze For: Freshwater and marine aquariums
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
Discover Niche Categories That Outsell
Top-Converting Item to Boost Your Average Order
Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.8 ★★★★★
Based on 1995 reviews
Sort
Product Reviews
★★★★★ 5
Happy
Size: 5 Quart
Came promptly and as described
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
★★★★★ 5
good value for a great price
Size: 5 Quart - 3 Pack
great value and prompt shipping! Thanks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
★★★★★ 5
Great
Size: 5 Quart
Great product. Great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 3, 2025
★★★★★ 5
Product is from USA and the pullout spout.
Size: 5 Quart
The jug has a pullout spout which is great for controlling the flow oil.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 29, 2025
★★★★★ 5
Good Quality
Size: 5 Quart
Good value for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2025
