JCO,
I do no sales at this time. As far an Organic Certification, that is not an easy process to explain, its best for any individual to do the research. First review what the National Organic Standards Board has done concerning its recomendations on Aquaculture Certifications. Next find a certifing agency in your geographical area and contact them concerning your setup. They will be able to let you know what the requirements are.
Sorry I am not being spicific here, there are just to many possibilities in design, as well as agency interpertations.
Again I would first get the latest NOSB standards to include their work from the Aquaculture task force then contact a local certifing agency and discuss it with them.
Google is your friend.