Yes, I read the whole thing. Father's can be so stubborn...not as bad as sisters though. Oy!
You're 8gal should have no problem supporting those fish. You might want to test ammonia/nitrite/nitrate/whatever everyday for the first week to get an idea of how much waste is being created and how often you'll need to do water changes. If you change a couple gallons every few days, you'll be just fine.