I keep several Euphyllia but not torch coral per se. Most of mine are from hobbyist-cultured stock; some of which have been in the hobby for close to two decades. I keep water parameters so my acros are happy and euphyllia (and everything else) are along for the ride. They are doing well up high, down low, all with moderate to fast current. I do spot feed with Coral Frenzy every month or so. So my advice is to find stock that has been grown in captivity and spot feed.