Hey all. I've had my 10 gal. up and running for almost a year now. I have a sand substrate and have been reading almost every thread on this fantastic fish. I haven't actually been to the fish store to check them out so I had a couple questions for the experts. First, how much do the striped ones usually run? And second, I am running an Emperor filter. The cover on these filters covers the outflow. Would this filter be safe left as is, or should I add something else to keep the loaches from trying to swim into it? Thanks for any help!