These Wrasses and Blennies, Watchman Goby and Royal Gramma will be aggressive towards some other fish. I'd plan carefully because you might end up wanting fish that won't be compatible with these. There are Wrasses that are very peaceful and beautiful that will most definitely not be OK with the suggestions above. Another thing, if you want corals, check if the fish are reef compatible. Once you decide which fish you want, a general idea of genera, plan the order in which to add them because the more aggressive they get the later in the game you might want to add them. The general rule is adding fish from least aggressive to most aggressive in order, so the more peaceful ones can feel settled instead of coming into a tank full of "different" personalities.
