
Again compareing fish to dogs just obserd. No 1 dog can live in a small kennel. All need lots and lots of space to move around in.. Fish well don't..Just b/c they've lived in the tank for 6yrs according to him doesn't mean they don't DESERVE to have more room to live.
Sure someone could overstock their tanks with a bunch of fish and the fish don't die. But that still doesn't mean that those living creatures don't deserve to have a better bigger environment to live in.
You know you'd be right there with us if this guy was keeping 10dogs in a small little kennel, but b/c it's "just fish" it's not a big deal.