mask off the trims and wipe with some windex to get the oils off the glass and roll 3 coats, 4 to be sure 10-15 mins between each coat depending on temp. Peel tape off when the paint is wet. You'll be fine. When it drys and you don't want it black anymore just peel the whole layer of paint off. Good Luck!
If latex will seep into the tanks the the water will be leaking from that tank. haha