I have a 20 inch extreme giant in a 125 gallon tank. For substrate, I have a mixture of eco-earth and cypress that is about 5 inches deep for burrowing on one side. Unfortunately, crickets have started breeding in it. At this point, there are over a hundred pinheads in the tank! I am worried about them hurting him, although he is fine so far. If I need to change the substrate I will, but it hasn't been long since it has been changed and I don't want to change it unnecessarily. Has anyone dealt with this before? Any help would be greatly appreciated.