Irrubesco Tank

[LilBrick300k]

Hello all,
I currently have a 29 gallon planted tank with 3 Irrubescos (2 male, 1 female), 4 Shelfordii Kuhli loaches, and about 10 ghost shrimp. This is my first endeavor in fish keeping, but being a college student, this is the right choice of pet for me at the time. Three weeks in, I would say its going pretty well. I am looking for recommendations for a few more potential tank mates. I selected Irrubescos after much consideration, as they seem to be the most mellow of the dwarf puffers, and so far that has been the case. I haven't seen any aggression other than 1 of the males chasing another, but that is all. They couldn't care less about any of the other tank mates, and sometimes the ghost shrimp will swim to the top of the water column and feed with/crawl on the puffers. In fact, the only incident I have encountered was a user error: I put a recently glued anubias in the tank too soon, and a curious puffer took a bite of the super glue. All this being said, I want to put just a few more peaceful fish in the tank, perhaps 4 more of another species of kuhli, an algae eater, and/or another dither fish. Looking for any suggestions. Thank you!!

[Pufferpunk]

Welcome! Irrubescos do best in pairs, so I'd look for another female. Also, I wouldn't expect tank mates to last long with them.