I personaly use no gel at all or very little with the six spot or the orange heads. I primarily use it on the lobster roaches and even with the thousands or roaches that I breed (three 320 gallon tanks for the lobsters alone) I only use about 1 ounce of crystals a month. So anyone who is buying 2 pounds of the crystals will have plenty to last a long, long time since 1 ounce yields approximately 1 gallon of gel. I use a chick waterer that you can get at most feed or similar farm supply stores. It looks like a plastic jar turned upside down with a dish/tray at the bottom which I drill holes in the base and place in a large bowl, with the waterer filled full of water I turn it upside down in the bowl and file the entire bowl full of the water gel. As long as the gel stays nice and moist they do not eat most of it, they just drink off of it.
Dan Haas
Owner / Manager
Crunchy Critters Roach Farm (and pet supplies)