I have a 2.5 gallon tank that I keep empty with a small PH, 50 watt heater, and cheapie thermometer. If I get an SPS Frag or colony, I acclimate it in the small tank, then add a small pinch of powdered (crushed) interceptor to the water. Turn on the PH for circulation and the heater to keep temp at your normal tank temp. Leave it in for 6-8 hours, then remove and place the coral in your tank. The Interceptor needs time to kill the RBs.