Mine are in 2 36x18x24 exos. Mine use every inch of their tanks. Before I got my Parus I talked with Pepper about their size and he told me a large Auratus to small Tinc sized frog. So with that I found some larger Neos. My Parus have no problems backing into the brom axils and chill there for a bit.
Im not to sure if ive posted their tanks on Dendro but on Canadart I made a post.
Some Paru pics | Canadart