• Highly-concentrated ionic strontium solution.
• Incorporated by corals, clams, and other reef-building invertebrates into aragonite, the mineral that is secreted as skeletal material.
• Stronger than most competing strontium solutions.
• Contains no unwanted organic material such as EDTA, gluconate, or polygluconate.
• Over 50% stronger than most competing products.
• Free of phosphate, silicate, and organic material.

Instructions and Guidelines

Basic: 

Shake product well before using. Add 5 ml (1 capful) of product per 20 US-gallons of aquarium water every other day or as needed to maintain the strontium concentration within a range of 8 - 12 ppm. When used in this fashion, 250 ml treats up to 1,000 US-gallons (3,750 L).

Advanced: 

Determine the strontium concentration in the aquarium using an accurate test kit before supplementing. Shake this product well before using. Each ml of Brightwell Aquatics Strontion will increase the concentration of strontium (“[Sr2+]”) in 1 US-gallon (3.785 L) of water by 8 ppm. If the initial [Sr2+] in the aquarium is below 8 ppm, add this product at the maximum rate of 10 ml per 20 US-gallons daily until the desired concentration is attained, then dose daily or weekly as needed (see below). If not using a test kit, add 5 ml (1 tsp) of Strontion per 20 US-gallons of aquarium water in two-day intervals to maintain the [Sr2+] within the proper range. Always try to maintain the [Sr2+] within a range of +/-2 ppm. To determine the dosing rate of this product once the desired [Sr2+] has been acquired, measure the daily rate of strontium uptake (i.e. the decrease in strontium) in your aquarium by measuring the aquarium's [Sr2+] at the same time each day over a one- to two-week period. To determine the daily dosing rate (preferable to weekly dosing) for strontium maintenance: estimate the volume of water in the entire aquarium system; divide the daily decrease in [Sr2+] by 8; multiply this number by the volume of water in the system to get the daily dosage required (ml) to maintain a stable [Sr2+]. Daily dosing maintains a more stable [Sr2+] (and more natural environment) than dosing weekly, in which the [Sr2+] spikes just after dosing and then gradually decreases throughout the course of the week.