No I think you will be fine....corals in the wild are all nestled up in tight little space anyway...unless your actually crushing it I would say it's good....best thing you can do is pay attention to the coral, it will let you know if it's happy in that spot or not...that pic looks like it's doing just fine tho
IT kind of looks like Euphyllia Cristata (Grape Coral) could be wrong though. Either way move it to a spot that has medium open flow and you should be good. Nice piece
The marine biologist at one of the 3 licensed coral propagators in Orlando was at my house and said that's what it was. That's all I'm going by, not saying your wrong .