the substrate is full of adult superworms, i've searched at any given time theres only one or two adults that have the chance to change, i need to find some way of killing the superworms naturally without killing the roaches, that is my only option, there must be some food or substance that kills superworms but not roaches, any help is truly appreciated, i did not know three superworms could do this, with how the tank is set up its hard to get any of the worms out, they seem to feed on the wood i have in the tank, theres alot of hiding and climbing places only the roaches can get to so the worms don't bite the roaches at all because there kept well fed, etc. i feed supers to my tarantula he can eat a couple dozen at a time so thats one when of getting rid of them also feeding them to my turtle, i just need a way to stop breeding supers so that the adults die off, once again any help is appreciated, please no responces about sterilizing substrate, that is not an option, alternate methods are needed.