So I have rehomed A medium size dory (hippo tang) was eating frozen food fine at the lfs and ate A lot in the previous owners tank and has had a few nibbles of frozen in my tank is a very healthy looking fish however since arrival dory no longer wishes to eat I have mixed seachem garlic gaud in and seachem entice into the food and had had no luck also got some seaweeds in there any other advice Been in the tank 4 days