mine has been together for 2.5 years.... my CK IS 17 INCHES..and there are 5 angels with him that have been with him since he was 7 inches in size.he was alone before that.....in his own tank and he was fed blood worms and then pellets and other dry food ...also frozen silversides...so he never became a predator.. i know this is unlikely but he has no interest in any other fish.. angels go right into his house to pic up food and he could care less about them... i would say everything depends on how they are raised... and how young they are when you get them... i trust mine completely... 2.5 years all together... and never a problem...could it be different situation for you with ck and angels..absolutely.. but i have 100% trust it will never turn ugly for me.... he gets along with all his tank mates..he loves his big house... thats all he cares about...
