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Description
Brightwell Aquatics Alkalin8.3 - 500mlBrightwell Aquatics Alkalin8. 3 500ml Overview Concentrated KH buffer supplement for all marine fish and reef aquaria. Features Highly effective alkalinity(KH) increasing ("buffer") solution. Helps increase pH stability in an aquarium by raising the alkalinity. Provides a source of carbonates, which make up the majority by weight of aragonite, the mineral secreted by reef building organisms as skeletal material. Continued addition raises pH until 8. 3
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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
4.3 ★★★★★
Based on 2257 reviews
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Product Reviews
★★★★★ 5
Appearance
Size: 8, Color: Tan
Looks better in person
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
★★★★★ 5
very good
Size: 7.5, Color: Cognac
veryyyy gooood
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Reviewed in the United States on January 29, 2026
★★★★★ 5
Nice shoes
Size: 9, Color: Cognac
My Husband loves it 😍
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Reviewed in the United States on January 11, 2026
★★★★★ 4
I just need the size 12
Size: 12, Color: Tan
Gm.i made a mistake the first time when I order the size 13. I return it because it was to big .so I reorder a size 12 now am looking at my order they still sending me the same size 13 i will have to return it again because it is to big sorry I dont know what going
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Reviewed in the United States on May 8, 2026
★★★★★ 3
Worth the price
Size: 10, Color: Tan
A little tie on the valley,
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Reviewed in the United States on May 20, 2026
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