Thanks Murrayjane, I'm already deciding between the ornate or the delhezi. I like the endlicheri but i know that one gets too big for my tank.
Just want to say, you have a terrific looking Managuense pair.
Back on topic, if an Endlicheri is what you really want, then I suggest you get one. An Ornate Bichir at their adult size won't be significantly smaller than an adult Endli and realistically speaking, by the time either reaches their potential, a 125 gallon will likely be too small.
The choice between the two should really be based on whether the lower jaw of the Endlicheri plays a factor and concern for any smaller tank mates. They are true monsters when it comes to eating. The Ornate, from what I hear, is the more aggressive of Polyps, but usually towards other Ornates. The Ornate shouldn't be as big of a 'threat' overall (depending on what you keep with it).
I love my Endli though. Thus far he hasn't caused me any grief. I just make sure keep him very well fed. He likes to bury his head partially under the sand and often just stares at me. When its feeding time, its remarkable to see the size of prepared frozen fish he is able to consume.
The Ornate is still to small for me to give you a personal opinion, but I must say his colors are absolutely stunning even at 2.5".
The choice is yours! Best case scenario is to get both and plan to upgrade to a 180+ within the next 2-3 years.
The other option is to get the Delhezi. You will likely face zero problems and have a very nice, good looking Bichir.
My Senegal and Delhezi have paired and as my girlfriend states, they make an "adorable" couple.