tristan,
Only one wrasse per tank. Skip the dottyback, imo. Have heard they are pretty aggressive. Pair up your percs, but leave out the skunks. Don't know much about the blennies' diet requirements. Do a little research on them to be sure your tank will support them.
Overall, try not to over stock on fish, then have to feed them less than they need to avoid or cure algae/cyano problems.
HTH
