I’m not contradicting any of the other posters, all of whom obviously have more experience than I.
7yrs ago, I very stupidly set up a 150g tall w a Hippo T, Yellow T, & Foxface. They have survived and thrived, but they’re getting *big*. The Foxface is 6”, Hippo 5”+, Yellow 4.5”+.
I believe the only reason they’ve made it so far is bc there is a *lot* of rock in the tank where they can hide and de-stress if needed. Also, they’re well fed.
I’m really attached to my ‘Terrible Trio’, and now, w 20/20 hindsight, I wish I hadn’t done this: sooner or later (probably sooner) one (or TWO) will have to go. Where? I have NO IDEA. :-(
I’m glad you’re smarter than me, @Chicagoreef2016.