Originally Posted by Pitluvs
I really don't advise people buying animals to clean up their tanks, they should do it themselves. If you want them as a pet, sure
I slightly disagree with your statement, just for the fact that when I originally put my cory doras in my community tank (tetras), it was for cleaning up leftovers.
I did have the space for the cory doras when I bought them. I also supplement them with pellets. I am really glad that I bought the cory doras now, seeing as they add a lot of personality to the tank.
Generally, yes, buying for cleanup is not a good idea. There are exceptions to the rule though. Just need to put some thought into whether or not you have room, will it get along, and will it just end up creating more space.