For those of you who have tried water marbling you know it makes an amazing design on your nails and is very simple to do! I've had people ask me why their nail polish doesn't spread once they drop it into the water though.
Most of the time I have found out that people are using warm water or cold water. Don't do that! It absolutely has to be room temperature or the colors won't spread correctly. It's a very simple change that needs to be made.
Hopefully that'll help some people that get confused by that and think they need to use a certain brand of nail polish or something very complicated.
Remember: ROOM TEMPERATURE WATER.