mine is kinda high in my tank.on a rock but there is just a tad bit of flow there.enough to make it wiggle but not alot.i have heard that they bruise easily.therefore sand is better.but my lights are vho and not all that si i put it higher.have had it for a couple of months so far and no problems.
i do not add calcium.i drip kalkwasser once a week.i have targetfed it mysis but not too often.usually just let it get what it can get that is floatin around.
i put it on the sand, but will my serpent star bother it or my scooter blenny?? i also have a condylactis anemone that moves around alot so i should keep it away from that right??