I was curious if you have a sand bed and if u are able to clean the sand without sucking it up.
If you use a long enough vacuum:
That's what I'm going to do. Bought a 30 lb bag of sand and will be sucking up half or so. I know in my previous water changes i take the sand out at times and even though not too much, it's just filthy. I'll have to get into the habit of taking a little out during every water change.