Because; a lot of the mom and pop shops are going out of business, the big companies are not doing so hot either, shipping costs are going up since DHL left town, but the airlines are hanging in there, I want to extend my business with this offer.

If you are interested in selling tropical fish then perhaps I can give you that opportunity. My list prices are basically a 100% markup from my regular cost. I am lucky to make money on that but if there is enough volume then it works. Yes, you can subtract 30% from the listed prices and that will give you about the same as my cost plus 40% example: .60 cents (List) - 30% = .42 cents (your cost) or .30 cents (my cost) + 40% = .42 cents (your cost)
From my perspective it is based on my cost plus, since I have no control over what the fish cost me. My profit amounts to a service fee or commission. You don't have to deal with the farms and I do it for you. The only problem I have is dealing with you and the farms both. It is not that profitable for me unless I can get some volume from you. You need to factor in the cost of shipping from me to you on an appropriate airlines. Most of your local pet shops pay the 100% markup through Tampa and just mark it up again another 200% or more to cover the cost of shipping and store front.

This offer is good for my established customers and anyone that can prove to me that they are more than just a one time deal. I need to know something about you and what you want to accomplish.