Would they get enough light with it sat on his window sill? He gets the morning sun direct until about 12.30pm.I'd go with shrimp, that's not even a gallon of water. Shrimp pretty much need live plants though, and I don't know if that light is suitable.
That is way too small for a betta. They are a lot more active than people give them credit. Not to mention that something like that won't hold a steady temp.
Honestly I wouldn't even buy that. You could get a (still small) tall hexigon tank for something like shrimps for probably about the same price as that tiny tank.
He can't have a 20g!!:shock: Mine's only 6.3...that would not be on. I'm already jealous I can't have one as big as some of you guys! lol!I agree, for the price of that 'decorative' fish tank he could probably get a basic 20gal tank/hood combo.
There are 'micro' fish, but they also need at least 5gal if not 10, because they're schooling fish. But they are more difficult to care for, since they are so tiny. Plus they're usually hard to find locally.