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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
For Your Every Summer RSVP, with Code: SUMMER15
Description
Reef Crest Bulk Sodium Bicarbonate (3600 Gram)The grade of chemical you need, at a budget friendly price! Sodium bicarbonate is used to maintain the alkalinity level of your aquarium. Alkalinity is needed to support the pH of your aquarium and to encourage proper growth rates of calcareous organisms. Choose sodium carbonate instead when pH is low. The goal is to maintain as stable an alkalinity as possible. We recommend using a Shlobster dosing pump with a timer to provide dosing in even

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
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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
4.6 ★★★★★
Based on 249 reviews
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Product Reviews
★★★★★ 3
Runs large with gaping arm holes.
Size: Large, Color: White
This runs extra large and the arm holes are gaping. You can see your undergarments through the arm holes. I am hoping that the shirt shrinks in the wash.
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Reviewed in the United States on January 17, 2026
★★★★★ 5
It soft and fits perfectly
Size: Large, Color: Black
Good love it
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Reviewed in the United States on June 8, 2026
★★★★★ 5
Nice fit
Size: Medium, Color: Black
Its good i like it
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Buena calidad
Size: Medium, Color: Black
Buena calidad
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Reviewed in the United States on May 30, 2026
★★★★★ 4
Runs large
Size: Large, Color: White
Runs much larger than I expected. I am 5’4”& 136 pounds. Usually wear a medium or large in some knit tops. So I need to stitch the side seams in hopes it will fit better. I like the weight and softness of the fabric, but really disappointed in the too large armholes. Unwearable for me until I
can sew new side seams.
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Reviewed in the United States on February 11, 2026




