Question): i have a frag of a trumpet coral with about 3 turning into 4 heads, but with only one stem/ branch, that ive jamed in a hole. How does this grow bigger with more stems etc?
It'll sprout new stems. Also it may sprout heads that you don't even see. I had one that I thought was 4 or 5 heads for months, took it out and realized it was more like 10 heads. Your coral will find a way to grow.