What about inverts? You still could have a clean up crew in a FOWLR
set up. I would highly recommend several snails, hermits and a couple of varieties of shrimp.
Also, I would skip the neon gobies. IMO
, they are nice for a small set up like a nano, but might get kind og lost in your 90g. I would also hold off on the blue starfish as I assume you mean linkia. They are very touchy. I would suggest a brittle for now and a orange/red linkia though as they are more hardy. Tank should be at least 6-12 months old for Linkia SF to do really well.