This is my first coral! I have an rbta that I let establish his spot first then went out and got this one.Are these your first coral? I'd just let them spread if so. Once those start growing get some other color variants and make a little garden .
If they do become a nuisance you can always put a more potent coral near them.
I want good coverage and let the corals grow and thrive but didn't know how fast it will spread or if I should be maintaining it in any way.