Fish tanks (9)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fish tanks</span>' is the definition.<br/ ><span class="explanation-format__explanation">(plural of aquarium)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for aquaria that I've seen before include "display tanks" , "Tanks or buildings for fish" , "Transparent fish tanks" .)
(Another definition for aquariums that I've seen is " Tanks or bowls for fish".)