Sounds and looks Fishy? I guess we will know for sure when he responds?
I would suggest that the name John Johnson is fishy.
The fact that there are two days listed for the fish lists is fishy. That there is not a longer history or that he didn't include a longer history of lists.
The fish lists being on a blog site ( free, anyone can start one ) is fishy.
No feedback, references or past sales informaton.
The paypal information from his email address appears to be a normal premier account. Not a business account.
Here is a letter for letter, word for word, identical list as his. His list is smaller and and doesn't include nearly as many items.
All the items on his list go back to this poseidon aquatics list.
http://www.poseidonaquatics.com/PriceList/pltxt.txt
I'm totally willing to give him the benefit of the doubt though, if his stock list becomes more detailed as many of you have explained and he provide a little more history or reputation to his name.