We are happy to now be offering Continuum Aquatics. A little history on Continuum Founded by marine aquarium hobbyist, engineer and long time aquarium products manufacturer Jack Kent, Continuum Aquatics, continues his quest for the most innovative, high quality aquarium products combined with excellence in customer service. Continuum Aquatics has developed a complete line of cutting edge chemical and nutritional supplements, vitamins and filtration media to maintain marine aquarium environments for the aquarium novice and for the most demanding hobbyist or public aquarium. Continuum products are thoroughly thought out, tediously tested, and made to the highest standards of quality. Be sure to check out the Aquablades, they are the original! They plastic blades do not scratch like the kent blades do.