Dragon's breath is a red alga with fiery red, branching lobes that move like flames in the flow; it is one of the few macroalgae you add to a reef tank purely as a display piece. The colour shows best under moderate light, since bright light actually bleaches it.
Wedge it firmly between rocks, because loose it drifts away and ends up in a pump. Bear in mind that tangs, angelfish and urchins regard it as an excellent meal.
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