Ruby Reef ARR11141 Hydroplex Aquarium Water Treatment, 1-Liter HydroPlex is a scientifically developed copper free, antibiotic free, broad spectrum water treatment It is effective for the control of parasites and microscopic organisms found in aquaria and ornamental ponds HydroPlex contains a unique blend of trade secret anti-microbial formulations available to the hobby industry exclusively through Ruby Reef These formulations are widely used in over-the-counter health care products and in a broad range of cosmetics and beauty aids Available in 1-liter bottle