Brightwell Aquatics pH+ – pH Increaser for All Marine and Freshwater Aquariums, 250-ml (PHP250)
$15.14
Price: $15.14
(as of Apr 07, 2025 12:46:04 UTC – Details)
pH is a measurement of the acidity of a solution, such as aquarium water. The pH of natural seawater ranges from approximately 8. 2 – 8. 4, however maintaining pH in the range of 8. 1 – 8. 5 on a daily basis has no negative impact on captive marine organisms. To maintain stable pH within the desired range, the alkalinity should be maintained within a range of 7 – 12 dKH (2. 5 – 4. 3 meq/L). Aquaria with low circulation at the water’s surface, in which a CO2-injected calcium reactor is being employed, or in which a carbonate-deficient sea salt blend has been used, often have depressed pH. pH+ will bring pH in the aquarium back into the desired range. Use as directed and do not exceed a pH value of 8. 5, as this pH may be stressful and/or fatal to sensitive aquarium inhabitants. Additionally, changes to pH should be made very gradually, again to avoid stressing aquarium inhabitants. It is not unusual for pH to fluctuate throughout the course of 24-hours between seemingly wide-ranging values (i. e. 8. 1 at night to 8. 4 during the middle of the day); this is a natural occurrence that is caused by changes in the rates of photosynthesis between dark and light periods. This situation is frequently encountered in aquaria with considerable growth of macroalgae (in the display aquarium or in a refugium). One proven method of minimizing this daily pH-fluctuation is to implement a refugium that is illuminated on an opposite schedule to the lighting for the display aquarium (known as reverse-daylight photosynthesis). In this method, the refugium is illuminated at night when the display aquarium lights are turned off, and vice versa; a 1-hour overlap of having all lights on encourages a smooth transition and little change in pH. The result is that photosynthesis takes place 24-hours a day and keeps pH as stable as can be managed. If pH levels are seen to be constantly below the desired level and alkalinity is within the proper range, increasing the circulation of water near the aquarium surface will often produce positive results; this practice increases the rate of gas exchange and encourages entrained CO2 to exit the aquarium before it has a chance to form the weak acids responsible for low pH and depletion of alkalinity.
Is Discontinued By Manufacturer : No
Product Dimensions : 1 x 1 x 1 inches; 8.5 ounces
Item model number : PHP250
Date First Available : June 24, 2004
Manufacturer : TopDawg Pet Supply
ASIN : B001DD2SG2
Country of Origin : USA
Increases pH in marine and freshwater aquariums
May be used to increase pH in aquariums that have adequate alkalinity yet have chronically-depressed pH levels as a temporary solution
Composed of purified water and high purity materials
Made in the USA
Customers say
Customers find that the pH increaser works well and successfully raises the pH levels in their aquariums.
AI-generated from the text of customer reviews
8 reviews for Brightwell Aquatics pH+ – pH Increaser for All Marine and Freshwater Aquariums, 250-ml (PHP250)
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$15.14
Arutlosjr11 –
Did itâs job.
Increased PH.
Teea –
Easy to use
Great for saltwater tank
Ant –
good
Its a quick fix if your levels are high but it won’t last
Elizabeth Miller –
Wow much bigger than expected
Wow much bigger than expected. Guess I didnât read the description well. But anyway itâs a lifetime supply. Works very well. I just put in a few drops at a time to bring up the PH slowly so I donât shock the fish or corals with a significant change. I feel slow change is best.
B Bayliss –
Koi are still alive
I had a nitrite spike that stemmed from a pH crash, this product adjusted the pH and increased KH.. the label alone tells you these people know what theyâre talking about. Read the instructions, youâll be enlightened
Alexandra Murry –
Works fine
Did what it is made to do.
WOWRAIDER –
Can not open bottle cap withour damaging the cap and bottle.
Can not open cap on the bottle. Push down and turn as hard as possible and it will not open. Had to get out channel lock pliers and push down so hard that I pushed the top of the bottle down and still struggled to get it open. Poured contents out into empty bottle to save some of it. I had this exact same problem with their Akalin bottle.
Rylee0808 –
Good product but Balance is better
I like and trust Brightwell products. I have a 29 G biocube reef tank. Because of its small size and absence of a refugium, the pH fluctuates, especially at night. I have a controller and doser to counteract the drop in pH at night and use pH+ to raise the pH. However, I have noticed an increase in alkalinity since using this product. The alkalinity increased from dKH 10 to 11.8. So I now use Balance instead of pH+ as it does not increase alkalinity.