Tank Without Hood. Lighting?

[Gremily]

Hi guys, just purchased a tank from a charity shop but it didn't have a hood with it. It's pretty small, about 30 litres so I thought I'd use it as a quarantine tank, or maybe for a group of small fish, maybe neon tetras. I'm just wondering how I'm going to be able to set up the lighting since it normally attaches to the hood. Not sure if I'll be able to buy a hood the fits the tank since it doesn't seem to be a "standard" size. Anyone any ideas?
Thanks.

 

[lym]

You can buy lighting that will clip onto the side of the tank.