I got 2 jd's and 2 green terrors that were sold as babies as a set of 4 blue acaras! became clear they weren't but bizarrely they jd's were easily my most timid and boring fish and although they reached about 8" and were beautifully colourful I woke up one morning to find one floating on the surface untouched and then 2months later the same happened to the other one. the green terrors got taken back very quickly!