We have 2 of them that are 10+. Have had them for 7 or 8 years. Actually had 3 of them, but did sell 1 back when we tore our 180 down. The male & female we have left are in our pond with our rays. They get along fine and are great at cleaning up the little scraps of smelt or tilapi left behind in the feeding frenzy of the rays. These are beautiful cats. Hubby had them all for sale and when it came down to it I couldn't let him sell them all.