i agree. here is a quote i found about reusing plastic bottles. if it does this to US. just imagine what it does to your FISH..." Reused Plastic Bottles Can Leach Toxic Chemicals The same studies found that repeated re-use of such bottles—which get dinged up through normal wear and tear and while being washed—increases the chance that chemicals will leak out of the tiny cracks and crevices that develop over time. According to the Environment California Research & Policy Center, which reviewed 130 studies on the topic, BPA has been linked to breast and uterine cancer, an increased risk of miscarriage, and decreased testosterone levels."