I used to have tiger barbs with an apple snail and they did like to pick at it. I never saw any actual damage, the snail would carry its antennae curled up and creep around underneath its shell, but you hate to see a snail have to live like that. I would say no to the tiger barbs. Rosy barbs on the other hand seem to be uninterested. Harlequin rasboras and brochis of all sorts seem to get along great with bridgesii, and most plecos. My teminiki plecos sometimes argue with my brigs over algae pellets, but that's only until they're not hungry anymore. Then everybody eats in peace.