Recently my zonatus have been really scatty, there in a 180 gal with some very small Congo tetra which are just as scatty, the zonts completely ignore the tetra even though they could swallow them easily. So I decided to add six sword tails, all was good for 3 days the zonts were a bit calmer and out and about more then I went away for 2 days came home to find all the sword tails have completely disappeared not a single trace, they were too big for the zonatus to swallow so either he has a deep hatred of anything orange ( best keep him out of Essex) and he has ripped them apart and eaten the remains or swordtails are aliens and have returned to the mother ship, either way I am back to having lots of fish hiding.