Well I decided to go with the evolution power heads, currently have a 1050 and plan to add 2 more 1400 and maybe another 1050. I know the Vortech and Tunze are king but for less than one Vortech I should be able to set-up a reasonable wave motion in my DT. The Dt is 245g 72X30X26, actual space above the sand is about 23". I'd like to hear from tose using the evolutions with a wave maker device so I can get some real world opinion before deciding on which to purchase. Your help is greatly appreciated.