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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
For Your Every Summer RSVP, with Code: SUMMER15
Description
Sera Marin Component 1 Ca 250ml[Volume - 250ml]Contains essential calcium necessary for the development of coral skeletons and other invertebrates. It is recommended to use this alongside Sera marin COMPONENT 2 and Sera marin COMPONENT 1 Ca calcium formulated specifically for seawater. The complete series of Sera marin COMPONENT 1 7 is designed for advanced marine aquaristics, providing corals and various lower animals with seven beneficial ingredients that work harmoniously together. Sera marin
Contains essential calcium necessary for the development of coral skeletons and other invertebrates. It is recommended to use this alongside Sera marin COMPONENT 2 and Sera marin COMPONENT 1 Ca - calcium - formulated specifically for seawater. The complete series of Sera marin COMPONENT 1 - 7 is designed for advanced marine aquaristics, providing corals and various lower animals with seven beneficial ingredients that work harmoniously together. Sera marin COMPONENT 1 Ca supplies vital calcium for the formation of skeletons in corals and other lower animals. The optimal calcium concentration in water should range from 400-450 mg per liter. You can easily check the calcium levels using the sera Ca-test. When Sera marin COMPONENT 1 and 2 are combined, they help achieve the ideal pH level found in seawater and maintain the natural balance in your coral aquarium. Dosage: Use the cap as a measuring tool. Always add one capful of Sera marin COMPONENT 1 and 2 for every 100 liters of seawater, allowing a 2 to 3-minute interval between additions. It is important not to raise the calcium level by more than 20 mg/l in a single day.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
4.3 ★★★★★
Based on 725 reviews
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Product Reviews
★★★★★ 4
Comfortable
Size: Large, Color: Light Blue, White, Black
Nice and soft material , not like a t-shirt.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Really great shirt. Fits great
Size: Large, Color: Black, White, Brown
Just wore one of mine and I really love it!
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Reviewed in the United States on January 16, 2026
★★★★★ 1
DId not fit well at all.
Size: Medium, Color: Black, Navy Blue, Wine Red
Baggy and .. saggy.
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Reviewed in the United States on March 14, 2026
★★★★★ 3
No las volveré a comprar
Size: Medium, Color: Black, White, Blue
Son bonitas y las tallas están bien, pero algo calurosas y después de 2 lavadas empiezan a deteriorarse
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Reviewed in the United States on June 9, 2025
★★★★★ 5
Perfect
Size: X-Large, Color: Black, White, Apricot
Was looking for some high neck T-shirts that don’t sag. These are a nice fit for a large body
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Reviewed in the United States on January 4, 2026