This is entirely untrue. I've kept my cories in Flourite for ages and they have *never* hurt their barbels.Hound said:Just to mention it. If your sand substrate is kinda sharp it wouldn't be too out of character for a cory to cut it's barbels off while scrounging around. Once that happens the wounded area could then become a breeding ground for bacteria leading to fish death. I can't say that this is what happened, but it is possible.
Bad water conditions cause barbel damage, not rough substrate.
Roan