I bought a Zoo coral 2 days ago. It really has not opened up yet. Is that normal or should I be concerned. When they say medium flow should I see them swaying or just so water kinda passes.
Thanks
Some corals can be very finicky. Moving causes a lot of stress. I don't think 2 days is anything to be concerned about. Make sure they don't have too much light, I always recommend starting them at the bottom of a tank and slowly moving them to where you want them.
I keep all of mine in low-med flow, you should barely see them moving in the current.