Pests are highly unlikely, since the tank was nearly coral free for nearly a year. The only SPS that survived was a Sunset monti, the part that survived is basically just the green polyps, there is no base that I could see for the longest time. In the past couple of days if I hit it with a blue flashlight at night, I can see some red in a few places. But the polyps are nice and fully extended.
The LPS did decay in the past too, but that was likely due to me neglecting everything after the crash. I have a few heads of my hammers that survived, and are looking good now.
I don't have other corals right now, never had leathers or such. I do run carbon, but tried no carbon for a while too. There are a few sponges growing in the tank, but never heard of them being a problem. I do have something that is growing in clusters of tubes that has spread all over the rock. I always thought it was some sort of tube anemone......I'll get a good picture later.