For a while i was with another service provider that was maintaining my tank in my office, to often my fish would die and the water would get nasty. I searched around online and found tempo and BOY was i stunned with there amazing service, what a difference, they send over the same guy every 2 weeks he know my tank inside out! the fish are healthy, no more buying overpriced fish! they also have near wholesale prices on some really exotic fish. I am Happy i made the switch, finding a good service provider for your fish tank is not easy. I highly recommend tempo!