I hava a used Coralife 1740-p about 6 mo old rated at 1744 gph bought it to put on tank but is to big Asking $175.00 OBO. Also have a Coralife Super Skimmer needle wheel rated for 125 gal about 1 year old selling because I upgraded to a octopus skimmer. $75.00 OBO. You can call me at 501-416-1312