I bought what I thought was 4 blue acars from my local fish shop iv liked them for some time as I was told there not to aggressive.so 8 weeks have gone by and one if them males has been growing a lot faster than the other male and two females plus he has a lot more colour.iv done some research a think iv got a green terror in my tank plus 3 blue acara but would like people to give me there opinions if I put some pics up,thank for reading