My 20l tank

Hey nice set up, i had a question for ya though im setting up a 20 L, what type of lighting you using power compacts? and also how did you set up your power head for water movement im not sure how to for mine thanks

This is my old setup. Look at my gallery, I have new shots. These lights were regular flourescents, but I now have power compacts. The 30 inch orbit fixture to be exact. I now have two powerheads set up at opposite sides of the tank. About 400 GPH total.