About 4" size. I have this guy for a few months, eat like a pig, nice and fat BUT he is a ich magnet. Every other week or so he would break out ich and it is very stressful for me to watch so we decided that he gotta go. So again: This guy has ICH - you will need to QT/treat And he is a little beat up from me catching him. I had to literally grab him by the tail and pull him out of his hiding hole. He is in a 5g bucket with airstone and heater right now so need to be picked up ASAP. Ping me if you are interested.