I have a 5 gal tank, filled to about 4.5 gal I would say (my Betta is a crazy acrobat so I can't fill up more because he can hurt himself by jumping too high). Along with him lives a highly hilarious, twitchy and stupid ghost shrimp. They get along absolutely fine to the extent where the shrimp sometimes tries to piggy back ride my Betta. Seeing how my Betta is absolutely timid, I was wondering if I can fit in another aquatic creature.
Would you recommend it? It really seems like there is more than enough space.
And if I should get something, what would you recommend?
The reason why I am considering it, is because before the shrimp my Betta used to be less energetic. Now that the shrimp has been added, I have never seen my Betta as active before. So I wonder if I add one more, would it make my Betta even happier?