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- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 23 - Jun 28
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Reef Crest Bulk Magnesium Sulfate (1600 Gram)The grade of chemical you need, at a budget friendly price! Magnesium chloride is used to maintain reef aquarium magnesium levels. Magnesium sulfate is used to maintain reef aquarium magnesium levels. A proper magnesium level is instrumental in achieving a stable calcium & alkalinity level. Best used in combination with magnesium chloride. Magnesium prevents the abiotic precipitation of calcium, and is essential to maintaining calcium and alkalinity
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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.3 ★★★★★
Based on 1408 reviews
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Product Reviews
★★★★★ 5
STARTER
WORKS LIKE IT SHOULD
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 5, 2025
★★★★★ 1
Junk!
Didn’t even last 8 months! Good paper weight. That’s about it.
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Super bueno
Excelente condiciones
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Reviewed in the United States on April 6, 2025
★★★★★ 5
Nice
Fit perfectly works the same
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Reviewed in the United States on July 15, 2023
★★★★★ 1
Starter
Didn't even last two months having to replace it already
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Reviewed in the United States on March 22, 2026
