Sometimes ingredients are sourced from other countries such as China. In the case of joint supplement ingredients, those are intended for human consumption and the FDA has three entities in China monitoring those ingredients. Most all B and C vitamins’ for human consumption are coming from China. Every ingredient that comes into our facility is accompanied by a Certificate of Analysis from our American Supplier which means it is guaranteed in certain requirements and has been tested by them for micobes, lead content, salmonella etc. We also have an in- house Lab that additionally test raw ingredients for issues like salmonella before it is made into a product. Once made, finished products for your pet are held until a retention sample is tested once again and released by our Quality Control Department. We are an FDA and NASC audited manufacturing facility which means that our finished products are routinely rotated to a third party independent lab that performs an analysis to insure that what we have listed on the label is a correct representations of what is inside. Reminder: Globally sourcing ingredients is very different from sourcing finished products from outside the US. This is not about costs, it is more about where the source of that preferred ingredient happens to be located. Some happen to be located in China.

Thank you for inquiring about the levels of our Joint supplements. The differences in our levels is dictated by higher milligrams and additional ingredients. You can visit our website at www.naturvet.com to review the ingredients in deciding which level is best for your pet.

Thank you for your question. This product is meant to measure light intensity of any type for aquariums, and should also work for LED lighting.

Thank you for your question. The cord is 46" long. njc

Thank you for your question. Each coral has different lighting requirements. We apologize, the LUX requirement does depend on the type of coral. ajl