I've had my Onyx/Snowflake pair for maybe 7-8 years now. When they were in my 90g they would spawn pretty regularly but I when I downsized to my 20g AIO they stopped. That was about 3 years ago. I moved them to my new 66g a few months ago and added a few BTA. My male moved into one anemone and the female has taken up in two that are still in the acclimation box. Yesterday I noticed the male mouthing the anemone he hosts tentacles and read that it's a cleaning thing. Today he's cleaning off the rock under the anemone and the female is coming over and doing the same. He's doing his little "sexy" shake at her too. I think I should see eggs in the next few days.