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Description
Sera Marin Component 6 magnesium 250ml[Volume - 250ml]The Sera marin COMPONENT 1 7 range is designed for advanced marine aquaristics, providing corals and various invertebrates with seven essential, complementary ingredients. Sera marin COMPONENT 6 magnesium is rich in crucial magnesium. For optimal growth of corals and other invertebrates, it is vital to maintain a balanced ratio of magnesium and calcium. The magnesium level should not drop below 1300 mg liter. You can easily check the magnesium
The Sera marin COMPONENT 1 – 7 range is designed for advanced marine aquaristics, providing corals and various invertebrates with seven essential, complementary ingredients. Sera marin COMPONENT 6 - magnesium is rich in crucial magnesium. For optimal growth of corals and other invertebrates, it is vital to maintain a balanced ratio of magnesium and calcium. The magnesium level should not drop below 1300 mg/liter. You can easily check the magnesium concentration using the Sera Mg-test (refer to the test instructions). Dosage: Use the cap as a measuring tool. If you have elevated the calcium levels with Sera marin COMPONENT 1 and 2, incorporate one scoop of Sera marin COMPONENT 6 - magnesium for every 100 liters of water.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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Product Reviews
★★★★★ 5
Nice Shirt
Color: Green&white, Size: Medium
Love shirt
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Reviewed in the United States on May 1, 2026
★★★★★ 5
Great men's Tshirt
Color: Off White&burgundy, Size: XX-Large
Great men's TShirt looks great comfortable good quality good brand good price nice colors. Fast delivery Thank you Amazon
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Reviewed in the United States on June 6, 2026
★★★★★ 4
As far as punk rock inspired shirts go this one is
Color: Off White&black, Size: XX-Large
The shirt looks nice but the material isn't what it looks like in the picture. It's actually kind of thick, almost like a weaved cotton pattern, if that makes sense. I got it during a heatwave, couldn't wear it. But if you're looking for a decent fall weather t-shirt, well worth the grab.
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Reviewed in the United States on August 28, 2025
★★★★★ 5
A shirt that makes you feel good...
Color: Off White&black, Size: XX-Large
Im very pickey about fabric and the way it fits my body. This shirt is comfortable. I love the colors. I liked it so much, I bought another one. This shirt makes me feel good when i put it on.
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Reviewed in the United States on September 28, 2025
★★★★★ 3
Go up a size
Color: Off White&burgundy, Size: X-Large
Material feels great but sizes are not accurate. If you’re a XL, go up a size.
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Reviewed in the United States on April 4, 2026