First of all, I love the wordplay.
The game is a lot of fun and I'd love to keep it as a casual game on my phone - so I'd like to join the others: please make your game available as an Android app. LibGdx supports that pretty much out of the box, to my knowledge.
And I think I found a bug in the web version (android/firefox), there is a bit of an artefact in the fish texture. Maybe related to an SpriteAtlas, if you happen to use one.