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Brightwell Aquatics

Brightwell Aquatics Boost pH+

Boost pH+ High Range pH Increaser deals with excess CO2, raises pH only without increasing alkalinity or calcium (in tanks already having a proper dKH)


  • Increases pH in marine and reef aquaria without affecting alkalinity or calcium level (which is an unusual ability not found in most similar products) on properly buffered tanks.
  • May also be used to increasing pH in aquaria that have chronically low pH due to excess CO2 or other chronically low pH problems
  • Works with buffers and alkalinity products to increase pH to desirable 8,3, 8.4 or 8.5 levels without increasing alkalinity itself (in marine aquariums that have proper alkalinity of 7.7 to 10 dKH)
  • Assists coral growth. Higher pH allows increased growth rate in new frags and mother colonies in coral grow-out facilities


Technical Overview

pH is a measurement of the acidity of a solution, such as an aquarium water. The pH of natural seawater ranges from approximately 8.2 - 8.4, however maintaining pH in the range of 8.4 - 8.5 on a daily basis has a positive effect on captive marine organism growth rate, primarily in stony corals. Also may help prevent bleaching, boost immune response, and assist in coloration. To maintain a stable pH within the desired range, the alkalinity must first be maintained within a range of 7.5 - 10.0 dKH (2.7 - 3.6 meq/L). Aquaria with low circulation at the water’s surface, or in which a CO2-injected calcium reactor is being employed, or which are placed in an enclosed room with human and animal inhabitants (giving off CO2 into the air), often have a depressed pH due to carbon dioxide build-up. In an aquarium that has proper alkalinity as stated above, Boost pH+ will overcome this and bring pH in the aquarium back into a higher desired range without raising alkalinity to an unacceptable level. Use as directed and do not exceed a pH value of 8.5, because pH at 8.6 or higher may be stressful and/or damaging to sensitive aquarium inhabitants. Additionally, changes to pH should be made very gradually, again to avoid stressing aquarium inhabitants. See suggestions for adjusting alkalinity below. It is not unusual for pH to fluctuate throughout the course of 24-hours between seemingly wide-ranging values (i.e. lower at night higher 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. If pH levels are seen to be constantly below the desired level and alkalinity is within the proper range, then the addition of Boost pH+, this product, maybe very helpful if the hobbyist has already properly adjusted the alkalinity and it is within recommended ranges.


Instructions & Guidelines

First read warning and follow safety recommendations while using or storing this product! This product safely raises pH only and does not increase alkalinity or calcium level. You must use other products for those functions. Do not attempt to use Boost pH+ on systems with low alkalinity or to raise alkalinity.  It is not designed for that.  First, determine the alkalinity in the aquarium using an accurate test kit or recently-calibrated meter before using this product. If the alkalinity is below 7.6 dKH or 2.7 meq/L , adjust it first using Brightwell Aquatics’ pH+ or Alkalin8.3 or Alkalin8.3-P (powder) (all three of these products raise both the alkalinity and pH, unlike Boost pH+ which only raises the pH and not the alkalinity) and then allow 24-hours to elapse before re-testing alkalinity and pH, then adjust pH upward, if needed, by adding Boost pH+ as directed below. The dosage required will vary significantly based on a number of factors, but as a general estimate, 7.5 ml of Boost pH+ will raise the pH of 10 US gallons by about .1 pH.



First adjust the alkalinity to a range of 7.5 - 10.0. dKH (2.7 - 3.6 meq/L) as described above using Brightwell Aquatics’ pH+ or Alkalin8.3 or Alkalin8.3-P (powder) as directed on their bottles.  To raise pH further without increasing alkalinity, add 2.0 ml of Boost pH+ (this product) per 10 US gallons in a high flow area such as a pump intake or a power head exhaust. pH will generally stabilize within 10 minutes following product use, Re-measure pH and dose again, if necessary. Do not add more than 10 ml per 10 gallons per day!  Livestock should not be subjected to a change in pH of more than 0.2 per 24-hour period, so do not overdose Boost pH+. Repeat as needed to attain desired pH value. It is recommended that pH be maintained within a range of +/-0.2 at all times.



Boost pH+ is an excellent but somewhat unusual product, in that it is designed to adjust only the high end of your normal buffering system, not do the entire work of a complete buffer.  It has to be designed this way because a regular buffer cannot readily be adjusted to go higher than about 8.3 pH.  A product like Brightwell Aquatics’ pH+ or Alkalin8.3 or Alkalin8.3-P (powder) must first be used or the marine salt you are using must be properly buffered so that the alkalinity is in normal seawater ranges.  If the alkalinity is too low, Boost pH+ cannot work properly, and you will be disappointed.  Of course, it is dangerous to operate a marine system below 7.5 dKH and most hobbyists understand this. Systems with low alkalinity are subject to catastrophicly rapid drops in pH, in much the same way that bank accounts that have low balances are subject to sudden overdrafts.  In this age of the internet where seemingly everyone with a computer is an expert,  there are voices that say that you can operate your tank at 7.0 or even lower (these are individuals that likely like to "roll the dice" at a casino too).  Of course a marine aquarium will operate just fine at the low dKH until there is an upset and then everything dies.  The following is a list of mistakes that could cause Boost pH+ not to give you the performance you desire:


  1. If you don't adjust the alkalinity to at least 7.5 dKH and maintain that level.  The water industry calls alkalinity "temporary hardness."  I think this may be a better term.  Alkalinity must always be added because it is always reacting and leaving the system. If you don't properly adjust alkalinity with a true buffer, you could observe the need for excessive amounts of Boost pH+, cloudiness of the aquarium and the product will not perform as advertised.  We also recommend that you use a true buffer, such as Brightwell Aquatics’ Alkalin8.3 or Alkalin8.3-P to increase the alkalinity, instead of some of the single component so called "alkalinity" supplements that only contain sodium carbonate.  You could save money from using them, but they are not really bargains when you factor in the instability in your aquarium that they cannot overcome.  True buffers have multiple ingredients blended to provide tighter control over pH swings and the relative safety from crashes.  True buffers regulate pH besides providing alkalinity.                                                                                                                              
  2. If you set up Boost pH+ on a doser prior to first using it on the system and understanding how it interacts with alkalinity on your particular tank.  Boost pH+ can easily be dosed on systems that have an automatically controlled alkalinity (to keep the alkalinity above 7.5 dKH), but you should take time to see how it interacts first.  Go slow.  Overuse of Boost pH+ can raise the pH too high if you don't measure and pay attention.  Our true buffers, Alkalin8.3 or Alkalin8.3-P, can be overused without much consequences.  They will stop at a pH of about 8.3. This is not true of Boost pH+.  If you continue to add Boost pH+, it will continue to raise the pH to even dangerous levels in much the same way as continuing to press the accelerator on your car will increase the speed past the speed limit.  This isn't likely, but it could happen with gross neglect.

Warning: Contains caustic sodium and potassium hydroxides; Causes burns. Keep out of reach of children. Wear suitable gloves and eye/face protection during use. Harmful if swallowed. If swallowed: Do not induce vomiting. First rinse mouth thoroughly, then give water, call a poison control center and get medical attention. May cause eye or skin irritation. If in eyes, remove any contact lenses, flush with water for 15 minutes IMMEDIATELY, if irritation persists, get medical attention. If on skin, remove contaminated clothes, wash skin thoroughly with soap and water for 5 to 10 minutes. Not for human consumption.

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We deliver orders in the following ways:


  • Your order will be delivered as a Postal package. Delivery costs in Finland 4,90€ when the purchase value is 1-29,99€. When the purchase value is 30€ or more, the delivery costs are free max 30kg.
  • In addition, you can choose home delivery in Finland for 9€/delivery.
  • Our most common delivery times to Finland are 1-3 business days from the time of ordering, depending on the order and delivery method. Note! Does not apply to custom-made products.
  • For postal parcels, the tracking ID is automatically sent via email when the order is left from our logistik center.


  • Your order will be delived as GLS standard. Delivery cost will be seen in products page when you add the products to your shopping card.
  • Our most common delivery times in EU area is 2-4 business days from the ordering, depending on the order. Note! Does not apply to custom-made products. Please note ! If the product is out of stock in our own warehouse, the normal delivery time is usually max 10 business days. 
  • For GLS parcels, the tracking ID is automatically sent via email when the order is left from our logistik center.


  • your order will be delivered as DHL Express. Delivery cost will be seen in products page when you add the products to your shopping card.
  • Our most common delivery times outside of EU areas is 2-4 business days from the ordering, depending on the order. Note! Does not apply to custom-made products. Please note ! If the ordered product is out of stock in our own warehouse, the normal delivery time is usually max 10 business days. 
  • For DHL Express parcels, the tracking ID is automatically sent via email when the is left from our logistik center.
  • On heavy orders additional cost will be applied.
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  • Extra custom duties may be applied in all orders outside EU area

Exchange and return policy in: Finland, Sweden, Estonia

  • You have the right to exchange or return all or part of your order within 14 days of receiving the order. Note! does not apply to ordering and custom made products.
  • The right of return only applies to unused and salable products with product labels in the original packaging.
  • The subscriber is responsible for paying the refund. The return fee in 5,90€.

Unclaimed shipment

  • We deliver all orders by post. Posti stores packages for 7 days at all its pick-up points. If the package is not picked up during this time, it will be returned to the sender. An unclaimed shipment is not a return under the Consumer Protection Act. In these cases, we will automatically charge 15€ for postage and handling in connection with the refund.

According to the return, include the following information:

  •  a copy of the Aqua Nomad order confirmation

Return address:

  • The return address varies depending on the product to be returned, please contact us before returning
  • We do not accept returns more than 14 days after delivery. Once the refund is accepted, the money will be refunded directly to your account upon receipt and processing of the refund.

Problem situations during transport and for defective products:

  • If the product has been lost during transport, damaged or the wrong product has been deliveded to the customer, the customer must report the error immediately to
  • Notification of incorrect delivery or defective product must be made within 14 days of receipt of the product. If the package is damaged in the mail, a complaint must be made about the product to the post office immediately.