I just adopted a silver arow who's whiskers are falling off at the lip line from hitting the glass to much. Will they heal now that he is in a bigger tank? And my lfs guy says that once the whiskers fall of that the fish usually doesnt' fair to well afterward. Is this true? He was in a 75 now in a 220. ( I am prepared to build indoor pond this yr)He's 19-20 inch currently.