Sorry if I hurt your feelings, didn't mean to. And I admit I take everything to heart far too fast.
And I most surely am not looking for a fight, see, I'm here because there's not many betta lovers in my country, and I am actually on one of the slovene aquarium forums as well, but there's not many people who have bettas there, so I said why not look at a webpage from somewhere else.
Fact is, I take cycling an aquarium completely logical. It's just a must. And a 100% weekly water changes, well surely that rings a bell in your head that maybe that's a complete shock for your fish? And have you ever thought of what else is in the water that comes running out of your kitchen sink? Well I'm sure you heard of chloride before, and I'm sure even the sound of the word itself doesn't imply to something healthy for your fish.. (Humans as well, mind)
But otherwise,hehe, I am no scientist ;) I'm a jazz player, I go to an art school. I don't even have chemistry or biology classes in school for heaven's sake! :P
Sorry if my words were too sharp, but please do yourself a favour and do some research on cycling aquariums on the internet, and I'll gladly answer any questions you'll have about it! And if I won't know, I'll ask on until I get the answer ;)