they do... but the best ones for salt water fishes are at rotonda maradona (giugliano), but my husband does not recall the name (if you ask among fish hobbists they re gonna tell you it is the best) and another one in pianura (exit tangenziale fuorigrotta, turn right, straight on for 3km the left straight on for a couple km<) which name is corallomania. very competent people, a little bit expensive.