flame angels? reef safe?

[kwanlp26]

i love my flame angel. he never touches any coral. 90% of them are zoo, so i don't care if he gonna touch them or not. since zoo will reproduce anyway. btw, he never hides and is a very active swimmer (didn't expect it tho). here's the pic of him

 

[reefman]

i don't think there's a clear yes/no with angels on nipping.
IMO there should be a chart (1%-99%) base on the chances on nipping(sps,clams,lps,gorgonian,etc...). no angel is 0% or 100%.