Researchers believe that nanotechnology may have the potential to provide fishponds that are safe from disease and pollution. One company, Altair Nanotechnologies, makes a water-cleaning product for fishponds called NanoCheck. It uses 40-nanometer particles of a lanthanum-based compound that absorbs phosphates from the water and prevents algae growth.
Altair sees a potentially large demand for NanoCheck for use in thousands of commercial fish farms worldwide where algae removal and prevention is costly at present. According to Altair, the company plans to expand its tests to confirm that its nanoparticles will not harm fish.
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