If you are charging for your service and your are prescribing medications, or performing some form of physical treatment you need to be registered. If you are consulting to an public or private aquarium and recieving a fee, you just need to be licenced as any biz would. If you are relating personal experence, or offering your opinions and so on like these types of sites then you are ok.
Is this about your new site Terry???
I am only talking about giving people advice or suggestions. I would not be physically examining fish, performing surgery, doing blood tests etc. I know I will need a business license for my Website. I plan to put a lot of articles that I have written on the Website that people can read. Most things, including all the articles, will be free. I already contacted the state and they seem to think I won't have a problem. However, I am going to continue looking into things before I put up the money to have the Website built.
I spoke to someone at Washington State Licensing for Professionals and they told me that they didn't find anything that would prohibit me from giving advice on my Website. I hope to meet with Dr. Tim Miller-Morgan of Oregon State University next week. We will put our heads together to formulate some ideas. I am not sure when the Website will be up and running, but I am thinking the first part of May.