A week or so ago I bought a small sun coral. Since that time I tried target feeding it with a turkey baster in tank, nothing. I have since started taking it out and putting it in a container to feed it to no avail. I have been giving it mysis, brine, cyclopeeze, plankton you name it I have tried it.....no luck, I have yet to see it even attempt to open. My parameters are .....ph 8.3/8.4 salinity 1.025 temp 79.5-81.7 ca is 415 alk 3.5-4.0 meq/l everything else in the tank is doing well with this exception........any advice ???? *SICK*