This is one of those subjects were everyone likes to use what the think the best one is in there opinion . So with that said I would look at some that push 800 gph just my opinion . Ecotech makes some good ones just my opinion though
I would get the Jebao Wp-25 for a 45gal or the new Jebao RW-8. I have one coming tuesday to replace my WP25 as it looks like a MP10 and will make a little wider flow then the WP25
thats where the Jebao RW-8 comes in. basically same design as the MP10 but pushes almost 500gph more at max setting and cost almost 3rd price. Jebao Wireless RW-8 Wave Maker