So, this is probably a stupid question, but what do I do with a couple corals that are overgrowing their plugs, to the point where they are growing up underneath the plug? I have a Favites and a Chalice that have outgrown their plugs. I just noticed that quite a bit of coral is growing up underneath.

Normally, you'd think lighting would be an issue, but both of these are just stuck in the sand bed, and the snails tend to tip them over... I try to avoid touching either of them, so they get flipped back with a chop stick, usually.

Do I get a bigger plug? I am not certain I want to glue them to a rock at this time. Any thoughts?