| Answer | Crossword Clue |
|---|---|
| TETRAS | Fishtank favorites |
| NET | Fishtank accessory |
| ALGA | Fishtank organism |
| SNAIL | Fishtank pest |
| ALGAE | Fishtank growth |
| ALGAE | Fishtank problem |
| ICH | Fishtank bane |
| ALGAE | Fishtank concern |
| AERATOR | Fishtank device |
| AERATE | Make the fishtank habitable |
| NEMO | Film character who escaped from a dentist's fishtank |
| NEMO | He spends much of the film in a dentist's fishtank |
