Well, it sure has been a long time since I updated this. Life sure got in the way of things.
So, the ATS has been fixed and back up and running. Growing loads of green. I added a media reactor and currently running some de-nitrate media. The cyano remains in the system. I have some red slime remover for it, as it won't come back after the system is dosed due to its nutrient levels, but I turned an problem into an opportunity. My skimmer was down again and it has frustrated me to the point of ordering a new one. I have a Hydor E-SK 600 enroute to replace the Red Sea...whatever it is at this point.
So, using the cyano to my advantage I nuked any remaining aiptasia in the system. There is always one is how I look at it at this point...and it is usually a very large one in the back corner that I've hit with aiptasia x several times now at this point. It retracted before I could even look at it a second time, but nailed the other ones in the system.
Only fish left standing is the yellow eyed kole. Never any problems with him, always swimming around and fat. Sad that the purple was always a skinnier fish, just vanished one day. Assuming it is from the nutrient dump when the ATS died.
Either way, progressing towards water changes. Goal is in sight as the tank is already covered in coraline algae again. The color has returned to my walking dendro and its tentacles have also begun to return.