I'm super guilty of this too: everything looks fine I don't need to do anything. But we all have that one maintenance thing we've been putting off. For me it's been buildup in my pumps. My powerhead has been slowing down a bit and has had some noticeable algae buildup but it looked fine and I've been busy, so I've been putting it off. Well I finally got around to swapping it out and holy moly what a difference. And it's only a sicce nano stream. So much more circulation and my couple of lps that have been ticked for no reason immediately perked up. Just a reminder to everyone: do that that regular maint you've been putting off.