That's awesome.. As a parent of 3 little kiddies (oldest is 4) I can understand where your coming from.
My son loves when the clownfish attacks me whenever I have my hands in the tank. The other day , he made a nice little ladder and was trying to get the clown to attack him.
I also love all the little handprints on the glass. Of course when you ask them if they were touching the glass you get a sincere "NO!"
I'm sure your tank will be fine.. I'm sure your LPS
will enjoy the "added" calcium for their stalks.
WELCOME TO AA!