Is Aqadvisor correct on this? (5 gallon hex stocking)

[Chakaga]

I have a 5 gallon eclipse hex that I wanted to set up to contain just a few guppies and maybe a couple of shrimp. Aqadvisor says that my 5 gallon hex is 204% stocked with only three guppies, is this accurate? I have a 10 gallon Aqueon on it and I thought that surely it could handle three guppies. I do not plan to mix male and female in this tank, just in case you were wondering lol. Thanks in advance for any advice.