Man I love this site!!!!! Lol. My next purchase is a powerhead. I have a Nasty dead spot on the right hand side of my tank. Are Haits ok with some additional flow?I try to vacuum every other day.
Especially with Haitiensus, the extra heat they need in their tanks can encourage opportunistic and/or pathogenic bacteria to proliferate (the opportunists type that causes bloat) and... any kind of detritus laying around for any length of time, creates substrate where bacteria like columnaris can get a foothold.
Since with sand, the debris basically sits in plain view its only a 5 minute job to suck it up, and anytime you can remove old water is a good thing.
I try to place my influent current in a way to push the detritus to a very visible front corner, which makes it even easier to siphon the accumulation up.