yes definately........ and guys/ reefers pla dun buy them..... let play a small part to help the eco- system....
Hmm i will list down a few-
1)at- sensitive, prone to ich and difficult to feed
2)moorish idol- VERY difficult to feed, prone to parasite
3)regal angel- Hard to feed
4)purple queen anthias- need regular feeding and hard to get it start to feed
5)white cheek surgeon aka powder black tang-Prone to ich... many died after few months in tank
6)clown surgeon- prone to marine fungus, and extremely aggressive
7)Powder blue- i guess many people will say they are quite ok what but actually the are extremely poor in acclimatizing... If They can get stable in the tank dens hould be ok
8)catalina goby- need cold water
9)cleaner wrasse- poor feeder and dun do well in captivity
oh ya quite a few anthias are difficult to keep due to thier diet for example, sunburst, pavirostris, square spot, ventralis, princess
And many of the wrasses can be hard to keep when newly introduced cos they get shock easily, poor acclimatizer and poor shipper