Hello. People always tell me when u placing corals, keep them at least 5" apart to prevent stinging. Unless its from same family, then its ok. But i always see those people with those reef tank, everything looks so packed and compact. How come? I see sometimes, corals touching each other, and next to each other...will they not sting? Becase now my tank i follow the 5" rule....looks very empty and non compact. Can anyone tell me why some people's reef tank the corals touching each other and within such close stinging range, but still look so beutiful?
ty.