i can't say in pic 1... but in pic two it looks like a male.
aqua_chem said:That could spell trouble for your other fish if the tank isn't big enough.
kdpuffer said:A four foot 55 should be ok but make sure there is lots of hiding places, rams like heavy cover and get territorial once they pair up. Rule of thumb is 20 gallons per pair but with the length of the 55 I think you should be ok. I have rams and they are nice fish.