I went to vats but i still have one hell of a setup . total gallons right now is 800 that is 4 vats of 200 each with a 1 horse pump on each as well as closed loops with half horse pumps and with that in mind if it aint tied down its gonna blow over lots of current . skimmer is an rk2 with 1000mg/hr ozone generator lights well they are mother natures own halide the sun, calcium reactor is schuran jet stream 2 , chiller is by way of 2.5 ton air conditioner, temp is constant 80 ph does not go below 8.2 and durring the day rises to8.4 no sand bed what so ever but a truckload of live rock, orp stays around 400 water is pristeen clean and the sps are growing like weeds later coastal