Hi everyone, I am just getting into breeding tropical fish, I'd like to know a bit more about cycling, aging water. Due to Christchurch having such pure tap water is it neccesary to sit the water before putting in the tank, I dont believe in chemicals that condition water but maybe that is something I should consider using, Basically I am trying to promt a conversation regarding tank cleaning procedures and water conditioning to get some different opinions and to see if I am on the right track, I have a guppy breeding tank ( 200 litre ) and also a 200 litre tank for swords and my female bettas, Males are kept in that same tank in breeding boxes aswell as a few other small tanks for spawning barbs and bettas. Please help me understand the aging/cycling of water better, Bearing in mind I am in chch not the USA or somewhere with high amounts of chloride in the water. Cheers