Hammerman - my response is based on the fish I have kept.
My cirrent incumbent is ten years old, and he seem sperfectly happy with the routine I described.
A previous fish I had was alone for some time - when I introdueced a new fish, he harassed it until it died, chasing it around the bowl, giving it no peace at all.
So although I bow to your superior knowledge, I answered as i always do on any subject - on my personal experience, or facts which I believe to be true.
If I have advised incorrectly, than I stand corrected.
OK?