Best in 7 days
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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
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- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 627 reviews
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Product Reviews
★★★★★ 5
Great product!
Size: 6 Ounce (Pack of 1), Style: SPF 50 Spray
Consumer Reports gives this sunscreen one of their highest ratings and that was good enough for me. Goes on nicely.
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Reviewed in the United States on December 15, 2025
★★★★★ 5
Perfect for sensitive skin
Style: SPF 50 Lotion, Size: 6 Ounce (Pack of 1)
I love this sunscreen. This was my first time buying after always using another company but recently my skin has started breaking out after using my old sunscreen. This sunscreen not only protects my skin but also does not give me a rash or irritate my skin.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
This stuff WORKS.
Style: SPF 50 Lotion, Size: 6 Ounce (Pack of 1)
I am pale, I have rosacea, and I live in the south. That is a terrible combination. But this sunscreen has saved my butt (well, actually it’s saved my face). It doesn’t sting at, and when I accidentally got it into my mouth it didn’t leave a weird aftertaste (I smear it over my lips).
This is my first mineral sunscreen, so I can only compare it to chemical sunscreens. But so far I think it lasts longer (and holds up to sweat better) than any other sunscreen I’ve used. It even survived a day at the water park with minimal reapplication.
Now I will be honest, it leaves a white cast. But I don’t even bother trying to rub it all the way in. I just go out looking like Casper the Friendly Ghost.
(Also it scored well on consumer reports, but the baby version scored even better, so I think I’ll try that next)
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Reviewed in the United States on June 19, 2024
★★★★★ 4
If you don’t mind white, it’s good coverage
Style: SPF 50 Lotion, Size: 6 Ounce (Pack of 1)
Good coverage, no scent but very white on skin.
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Reviewed in the United States on January 8, 2026
★★★★★ 5
Works Great, soothing
Style: SPF 50 Lotion, Size: 6 Ounce (Pack of 1)
This is the best sunscreen I’ve used. I’m fair and after some chemical peels needed extra protection. This sunscreen is soothing and works perfectly. Blocked me from any sun damage and I live in a very sunny location by the ocean.
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Reviewed in the United States on April 27, 2026
