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ShrimpPrep Freshwater Tank Detoxifier - 250 ml - Brightwell Aquatics

ShrimpPrep Freshwater Tank Detoxifier - 250 ml - Brightwell Aquatics


Item #: BW7411

In Stock

ShrimpPrep Safely removes chlorine, chloramines and ammonia and detoxifies heavy metals for all freshwater shrimp & fish aquaria.

ShrimpPrep can be used to prepare water for use (such as when performing water changes or replacing water lost to evaporation), as well as during periods of time when the concentration(s) of ammonia and/or nitrite become measurable.  Note that, ammonia and nitrite concentrations should remain immeasurable in established aquaria with mature biological filtration, except for periods when new livestock are added to the system or the concentration of dissolved organic material has increased for some reason.

ShrimpPrep is not meant for use as a substitute to maintain adequate filtration equipment/methods or the care thereof, however, it can be utilized as needed in the prevention of ammonia or nitrite from irritating sensitive aquarium inhabitants. A balanced aquarium is one in which the rate of organic material input to the system is matched by the removal rate from filtration methods; it is natural for a system to become unbalanced for short periods of time after adding new livestock, disturbing the biological filtration, changing feeding habits, etc., however the system should fall back into balance again within a period of days.  

If concentrations of ammonia or nitrite are persistently-measurable with a quality test kit, test the source water (i.e. tap water or water from the purification unit (if applicable) for these substances. If they are not present, reducing the rate of organic material input, increasing the filtration capacity, or even moving the inhabitants into a larger system may be warranted. Chronic levels of ammonia and nitrite can gradually weaken fish, shrimp and other invertebrates, often leading to illness and potentially death.


  • Copper free, designed for freshwater shrimp, also safe for all freshwater fish, plants and invertebrates.
  • Removes chloramines, chlorine, ammonia, and nitrites present in tap water and/or aquarium water.
  • Detoxifies heavy metals such as copper and makes water immediately safe for use.
  • Safe for use directly in freshwater aquaria, including planted, fish only and freshwater shrimp.
  • Free of phosphate and silicate.

Use Guidelines:

  • To Treat Tap Water for immediate aquarium use: Add 4 ml (2 pumps if equipped with pump) of this product per 8 US-gallons (30 L) of aquarium water; this corresponds to 5 ml or one capful (if not equipped with pump) or ~35 drops per 10 US-gallons (38L). When used in this fashion, 500 ml treats up to 1,000 US-gallons (3,800 L). Shrimp Prep will treat up to 6 ppm chlorine, 3 ppm chloramines, or 1 ppm ammonia, and detoxify heavy metals.
  • To Treat Aquarium Water in emergencies: Determine ammonia concentration in aquarium using an accurate ammonia test kit with ammonia salicylate reagent (see comments below). Add 4 ml (2 pumps if equipped with a pump) per 8 US-gallons of water in overall system per 1 ppm of ammonia measured on test kit. Allow 10 minutes to elapse, then re-test ammonia concentration in aquarium and repeat treatment instructions if necessary.
  • Testing for Ammonia: When using this product, be sure to measure ammonia with a test kit featuring ammonia salicylate reagent rather than Nessler’s reagent; Nessler’s reagent will give an incorrect positive reading of ammonia due to the manner in which the reagent interacts with the active components of Shrimp Prep.
  • Caution: Keep out of reach of children. Not for human consumption. Contact poison control center if ingested.

Manufacturer information

Brightwell Aquatics Aquarium Supplies
The goal of Brightwell Aquatics is to provide the absolute highest quality, scientifically-sound products and customer service of any aquarium water care manufacturer, and to do it all in a straight-forward and honorable fashion. All Brightwell products are formulated by marine scientists with a passion for the aquarium hobby. They utilize the highest purity ingredients in concentrations that provide the most use to hobbyists. Nearly all Brightwell Aquatics products are over 99.9% pure. The usage guidelines of Brightwell Aquatics products are written in plain language but the company is always available to answer consumer questions. All products are lot numbered for quality control and customer service.

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