Hi freemike, sorry for the delay - my computer crashed. How are your guys? Do they breathe okay? Are they acting normally? As long as they're acting normally and breathing all right, the discoloration is probably normal. Most bettas have some discoloration around their gills. If they AREN'T breathing normal, then go ahead and put them in 1 tsp of Epsom salts per gallon found post back. Hope they are both okay.