Brightwell Aquatics pH+ - pH Increaser for All Marine and Freshwater Aquariums, 250-ml (PHP250)

Wow much bigger than expected. Guess I didn’t read the description well. But anyway it’s a lifetime supply. Works very well. I just put in a few drops at a time to bring up the PH slowly so I don’t shock the fish or corals with a significant change. I feel slow change is best.

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 they’re talking about. Read the instructions, you’ll be enlightened

Not sure if it works as advertised. I could not get the bottle opened. It's childproof and adult proof. I'm 6'2" and 230 lbs and it was impossible for me to open it. You are supposed to push down on the cap and turn it counterclockwise. Good luck with that. They've officially protected everyone from using this bottle of the product.

not good when you are dealing with 300gl. it did raise the ph but alk up to, its not Supposed to raise alkalinity.

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.

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.

Finally found a larger bottle of PH. Would buy again.

Did what it is made to do.