I'm trying to decide whether to add a pair of clarkiis or true percs to my tank. I like the color of the percs better but the shape of the clarkiis. so my final deciding factor is going to be behavior. are clarkiis agressive towards other fish?? ive had percs in another tank before and they never bothered any other fish. are clarkiis as shy as percs? any info or personal experiences on either fish would be helpful and appreciated. thanks.