Given that most are not confirming chitons or limpets (heard other snails, worms, feather dusters, etc,...), so far it looks like these specific inverts are not very commonly seen in large quantity.
So something is helping them thrive in my tank and I may not be able to reproduce it in the next.
For those who do have large populations of LIMPETS & CHITONS, do you do anything different or special?
In my case- I don't run a skimmer + no mechanical filtration of any kind + no UV + kalk dosing only + large turf scrubber + heavy feeding