I did a water change today and afterwards I fed the corals. I feed them about 2X a week. I went to do my array of water testing and the ammonia was up 0.25ppm. I wondered if this was because I was testing within the hour after feeding. Any thoughts on when to test parameters? Since I had a rough busy week I was just catching up on things on the tank and had not thought ahead on what I was doing first etc - still new to this.