ddaddy
Member
I recently got a sun tube coral from an online store and it hasn't opened up for a week or so. I can't figure out what's wrong. The tank has all the proper additives and conditions. All my other corals are thriving except this one. I know it doesn't require much light and I have been squirting brine shrimp and zooplankton at it but it hardly responds. Can anyone shed some light on what's happening?