The purpose of this invention is to provide compositions useful for
promoting the growth of calcareous organisms present in a closed system
aquatic habitat. Particularly, to composition capable of efficiently
delivering calcium and carbonate to the calcareous organisms. Most
particularly, to a composition effective for enhanced delivery of
aragonite to a closed system aquatic habitat where it dissociates into
bioavailable supplements, such as, calcium, strontium, magnesium, and
carbonate ions, whereby enhanced growth of the calcareous organisms is
achieved.