hey guys me again. Two days ago i got 4 turqoise gouramis, 1 senegal bichir, and already in the tank was a common pleco. Today i got home and noticed the 2 gouramis on one side behind their gills had theire scales missing( at least thats what it looks like) They are acting normal but im a little concerned and curious. Was it one of the other gouramis or was it the small bichir? possibly disease? i have no clue. any help is great.