I was planning to get a new canister filter for my heavily planted 150 gal open top tank. I was planning on getting an Eheim 2250. But while poking around the Eheim website I became intrigued by the 2229 wet/dry. Has anyone used one of these in a plant tank, I like the idea of water pulsing back into the tank but not at the expense of not using the filter as a CO2 reactor. Thanks for any input Scott