I just got some kuhlis and have already found 2 in the filter (they're fine btw), so I need to block off the water exit. It's a hob filter and what I've done is got a big strip of filter media, cut it to size and put it over the rest of the contents. Here's a picture: http://imgur.com/jmqYARk Will it slow down water flow too significantly? The water exiting seems a little less forceful. A guy on reddit also said he flooded his floors doing this... Can anyone confirm that that will happen?