Yes, sorry it's 10 gallons.
I have 2 Mondo grass at all times (although I try to keep 3), a moss ball, and I added an Anacharis today.
The gravel is about 1/2"-1" deep depending on the spot.
I don't have a filter. I work at PetSmart and have heard some filter horror stories and I'm just a little chicken. I do need to get over it and add the filter though.
Charlie the Snail I don't feed. He eats the live plants anyway (I just keep replacing them), so I gave up trying to feed him. Neptune I feed 2-3 pellets in the morning and 2-3 pellets at night. He normally eats most of what I put feed him.
I use Top Fin Betta Water Conditioner. I follow the directions for the amount to add to each gallon.
It doesn't smell any different than fish usually smell. It just smells strong. It's like a lake is in my room. You can smell it from outside the door.