You can go to the place where you got them done and ask them to take them off. Or you can use a spare fake nail and wiggle it underneath the acrylic and it should pop off. Another way you can grow your nails out and clip off the acrylic nail with nail clippers as your nail grows.
If you dont want to mess up your real nail in the process you could use a medal electric file. or you can take hot water and put salt in it and let your nails soak in it a while and then remove them.
Ground is the background surface used to paint on. It helps to prime the surface by making sure that the paint will adhere the materials onto the surface better, as well as helping to protect and provide extra durability to the paint. There can be oil, acrylic or latex primers / ground.
