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).
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