Zionas are you contemplating getting a couple of Colin's angels in 55 gallons? I don't quite remember how big they can get but I'm sure they can be quite good there, it sounds like a pretty interesting project.Copps had a pair of Colini and might still have the female. He got the pair in 2009 I think so if female’s still alive, it’s 14+ years old. He was saying how his pair did surprisingly well despite being told that they needed very peaceful tank mates and couldn’t handle the rough and tumble of a tank with lots of other angels and active Tangs. Turns out they did fine, and the male when he had it was dominant over his Multibar male.
If I am able to get my hands on a pair of CB ones from Atoll Farm over in Thailand, I will probably set up a 55 gallon for them with the addition of a Royal Gramma. That’s my plan.