Tips on keeping Double Tile Starfish alive?

[CombJelly Cuddler]

I just got a Double Tile Starfish today and I want to make sure I can give it the best care possible to try and help it live past the one year curse. I have it in a 75g tank with almost full live rock and full live sand. However if anyone has tips on whatever else it might need please let me know. I know some people suggested spotfeeding and mentioned a strong intolerance to

 

[Timfish]

You can read through this thread and maybe contact the OP. They typically do not do well though.

https://www.reef2reef.com/threads/a...benthic-biofilm-for-substrate-feeders.918177/