How long is you tank, is it at 4ft minimum because if it is then a good choice would be clown loach, to what I have been told they need a minimum of 60g 4ft long tank.
No sorry minimum for clown loach is 6 foot 125 gallons as adults though they will be okay growing out in a 4 foot for quite a while. Glad to hear the rummy noses are working out okay They are quite fast and the tight school will help them in defense from the angels How many do you have now?