Women.....=) just kidding. I mean that stuff would be benificial if you have an ammonia spike but dosing the tank for no reason, i assume, wouldnt have a positive impact. Interesting indeed. The only two causes for the nitrate is either youre kits are playing up. Or youre tank inst cycling due to ammonia reducing chemicals but the missus would have to be constantly be dosing the tank which i guess would make.the nitrogen process unable to occour. Not to sure but seems logical to me. Benificial bacteria would be my next move. Really useful stuff imo. I use that when ever i start tanks and do water changes. Says it helps start the nitrogen process. Sorry for the lengthy replies. Just tryna give you some info.