Preface: please don't read this as rude, as I know sometimes things typed online can be taken the wrong way..
There are many of us here that have bought from a wholesaler before and are familiar with the prices.
Having said that, it seems only fair to give people the real prices and split the shipping with however many people join into your buy... Or for you to offer to pay a larger portion of shipping since you might be ordering more for yourself to keep/resell.
Otherwise, it could have the appearance of making money off the members here.
You must be a business of some sort to have the ability to buy wholesale.. So be upfront about your business, sell at your designated prices (such as the prices listed), and leave the wholesaler out of it.
We all appreciate that things can't always be at cost to help cover shipping or for a LFS to make a small profit to keep their operation afloat..etc.
But we all also appreciate honesty and being straightforward.
Not accusing you of anything, so again, please don't take the wrong way.
Just trying to give you another perspective.
The way it is currently worded could give the appearance of impropriety.
What would be great is to give our club an introduction to who you are, your tanks, etc and maybe come to the next meeting. I'm sure if you wanted to do a group buy, we could get some people rallied behind it once everyone knows you a bit better.
Hope this provides a little helpful insight. Have a great day.