I'm not familiar with sinclaria tree coral, but if it is anything like the other tree corals, you can feed them things like marine snow or phycopure. You can feed your trumpet coral and octo coral mysis shrimip or finely chopped seafood (uncooked!) weekly or biweekly. For zoas and GSPs you don't need to feed them anything. You don't need to feed your toadstool leather anything either, but you can feed it baby brine shrimp if you like.