Clown Fish Spawning Info

[Kevany]

My clown fish seem to be acting a little weird, they have never spawn before so this is all new to me. They have been picking at one area on my LR for the last 3 days and last night I noticed the female had her ovipositor sticking out and was passing over the area of the rock and the male would go behind her and shimmy over the area. I looked at the area this morning with a flashlight before the lights came on but there are no eggs. Once the lights in the tank came on the both of them started this again. Do clowns usually do a few practice runs before actually depositing the eggs?

Thanks...