My filter is here! Its a Magnum 350 by Marineland. It filters 350 gallons of water an hour and is for use in up to 100 gallon tanks. I wanted one big enough to do a good job. I am just a novice but I think the filter is the most important part of my tank. I don't want to be constantly battling a dirty tank. This filter is a bit difficult to assemble so my mentor will come by and give me a hand.