from what I have been told on here, dont mess around with your ph. if your fish are fine then leave it be, its better to have a stable ph then have it go to 8.4 after dosing, then a day or 2 later be back at 7.7 or less it causes too much stress. moving the tank for sure caused a mini cycle again, and the anemone dying creates more problems, like Brad (aquattro) says, large water change will help, or several smaller ones. I dont like the idea of canisters on saltwater tanks, but they can work fine too.. sumps allow for more water volume, more media/media reactors, etc. Good luck I hope everything settles in, and if you lose things its a bummer, but it happens to everyone!
p.s. welcome to Canreef
there are lots of really smart friendly people on here with lots of knowledge when it comes to this stuff