So about a week ago I purchased 2 powder blue rams, and 2 gold rams for my 55 gallon tank.
Over the past week the 8 cardinal tetras in my tank are disappearing, down to 3.
I find it hard to believe that they are being eating by my rams since they are very close in size, and I have found no dead bodies other than one male guppy with his tail eatin off. Also have guppies that are smaller than the tetras. Dont see any signs of aggression with any of my fish.

Has anyone had problems like this? Any comments

What fish do u have in the aquarium ??