90 gallon softie tank up and running just over 5 years. Hippo tang pair of clowns purple dottyback pygmy angel and most importantly a solarensis and melanarus wrasse. All is well and has been for the last 2 year's. Do I press my luck and add another wrasse ? Should I be happy with the way things are ? If I add, what sort of wrasse should I be looking for ? Thanks in advance