waaaaaaay more powerful, i had two pumps good for about 2000gph total, ive now got the one grye pump good for up to 5000gph, lol. but he had already shrunk in size in the last week prior to getting the new pump.That may be a reaction to the change in flow in the tank. It might have deflated a bit so it's less likely to be blown around. I'm assuming that the flow is a bit higher with the new wavemaker?