don't think there is one that is 100% reef safe.
drawf angels such as coral beauty, potters angel, flame angel, etc... 'maybe' reef safe. its a hit or miss with each kind. the only way you know is to try it out. also they may be 'reef safe' today, but all sudden be 'non reef' safe any day...it can be 1 yr or 2 yrs...or even a month. its all chance. good luck
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