Just as I was starting to feel relieved seeing my Ammonia level drop, it peaked again, this time close to 1.0ppm and I got new Coral coming in today. MY GOD! I can’t find anything dead, last week I cut back on the feeding when I first noticed my Ammonia up to 0.25ppm and I stopped using flake food. I did several small water changes though the days. I changed my filter media in my canister filter and cleaned it, so when you do this and everything is clean and new inside there, when it gets re-colonized with bacteria can that cause this to happen? Because I have no idea what else is doing it.