As a general guideline
-sps is usually okay next to other sps.
-most lps have sweeper tenticles that extend, stinging other corals, so lps need quite a bit of room around each coral. Depending on the species, some can be several inches longer than the tenticles.
-mushrooms/ricordia/yuma often release chemicals that are damaging to lps and sps especially - so you need to run carbon and not have them too close to the other corals
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180 gallon LPS dominated reef
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