Crossword clues for the word: FISHTANK The word FISHTANK has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for FISHTANK Showing 1 to 5 of 5 results Clue(s) 2009 film drama starring Katie Jarvis and Michael Fassbender Aquarium, essentially: 2 wds. Home aquarium Pet store aquarium School house?