newspaper under the tank on the floor. Painters tape on the edges of the tank, half the tape on the edge of the glass, half of it on newspaper big enough that it overhangs the glass pieces you don't want paint on. Then get into a well-ventilated dust free room. Give it 2-3 coats of spray paint, usually I put 1 light coat on every 2 hours or so. Let dry overnight and you are done. It's pretty simple. Just remember to keep the can moving when spraying and don't let the paint clump up in one spot.