well, is there anything else you can replace the stock pump with in a Oceanic biocube 29. that puts out 600GPH out od the stock output. I don't want an eyesore, and I don't want to have to drill or mod my tank anymore. I have cut and hacked it up enough with skimmers and lights and filters.
but I am looking to do 20X turnover per hour. And am wondering if spittin all that water out of the stock output is efficient enough and mix make my tank happy?