Blue throats are not bad but the "big 3" reef safe ones are the crosshatch, sargassum, and pinktail. Clams will be fine with any of those but apparently it's hit and miss with the hermits and whatnot. But *supposedly* those big 3 are water column feeders aka planktivores. You can tell by the upturned lips that they're not really meant for picking things off the substrate.
Think Niger's are reasonably safe too, although probably come after under the blue throats if you were to rate them.
Crosshatches are the bomb if you ask me, but pricey, and realistically get too big for your size of tank. After seeing some full grown ones about a year ago, I wouldn't even put them in my 280g.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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