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Brightwell Alkalin8.3-P 500g - ALKP500

Marsoni M251S
Sale price$20.95
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Brightwell Alkalin8.3-P 500g - ALKP500Highly effective alkalinity increasing (buffer) powdered blend. Helps increase pH stability in an aquarium by raising the alkalinity; continued addition raises pH until 8. 3 is reached, at which point the pH remains unchanged and the alkalinity alone increases. Provides a source of carbonates, which make up the majority by weight of aragonite, the mineral secreted by reef building organisms as skeletal material. Formulated by a marine scientist.
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4.8 ★★★★★
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Adam
San Leandro, US
★★★★★ 5
Fine product
Size: 150 ml, Pack of 1
This one works
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
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Palmetto Dan
Fort Morgan, US
★★★★★ 5
Works great!
Size: 150 ml, Pack of 1
This product works great for cleaning valves. Very effective formula that does the job well. Arrived quickly and was exactly as described. Would definitely buy again!
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Reviewed in the United States on May 2, 2026
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cb
Alexandria, US
★★★★★ 5
Molly valve cleaner
Size: 150 ml, Pack of 1
Put this in my truck with a RAM engine it was kind of running a little bit rough not really sure what was going on I thought I'd get this liquid Maui a try and she smoothed out some but you know who knows it could be all Hocus pocus
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Reviewed in the United States on May 23, 2026
A
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Amazon Customer
Alexandria, US
★★★★★ 5
Good product
Number of Items: 1
Bought to see if it would help with oil consumption. Good quality it seemed to help for first 1000 miles. Xc60 with over 140k
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Reviewed in the United States on April 24, 2026
A
Verified Purchase
Arek
Grantham, US
★★★★★ 5
Less oil consumption
Number of Items: 1
Made my engine noticeably quieter and felt smoother. Way less oil consumption then before definitely cheaper than topping off often
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Reviewed in the United States on May 19, 2026

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