it's not that the percentage itself is bad (although it is worthwhile to look at the neutrals, which do not count against a person) but that the comments themselves are quite... i don't know, disturbing isn't the right word, but it's enough to make ME as a buyer think twice - because of the "what if?" that is always present when buying online. when things go wrong based on the negatives and neutrals, it doesn't sound like there is a high level of customer service, or shipping/packing quality, etc. something sounds wrong. that in addition to the practice of running most of the auctions themselves for only one fish but then requiring the purchase of more is enough to put me off. if you will only sell a certain cory cat or oto in a group of 3 or 6, then sell a group of 3 or 6. don't sell one at a time and then force the buyer to get more or void the auction. seems shady to me, like "I hope they just bid and don't read my page 'cuz then they owe me a lot of money, ha ha!"
I haven't ever dealt with corysrus personally, but i am sharing the "gut feeling" i get based on reading feedback and auction pages. if someone else feels differently, there's nothing i can say or do to stop a person from spending money of their own free will. i am just saying that, as someone who has used aquabid successfully and who spends money on fish, i don't get the best of vibes from this guy overall.