Gravel Vac - doesn't pic up waste
So ever since I set up my main tank 6 or 7 years ago I've bene using the Lees Ultimate Gravel Vac, which is pretty much exactly like a Python. I always thought it was doing a good job - when I stick it down in the gravel it pulls up tons of mulm and whatnot which looks like tiny bits of dust when it comes up thru the vac.
However, I recently set up a bare bottom hospital tank and the exact same vac doesn't seem to even have enough suction to suck up individual bits of fish waste and I end up having to use a regular gravel vac and a bucket on this tank, which is very annoying.
Is there any way to increase the suction on a Python type vac? Is it a problem of low water pressure or something?