Are you actually supposed too be able to remove the large amount of poop build-up from a betta and snails? Tried a couple substratevacuums and they didn't suck up hardly anything besides water. Is there a more efficient way to clean sand?
Yup, whirl the syphon wand in a circular motion gently the poop and leftovers should kick up into it. It may take a little trial and error to get it right, but once you know how close to hold it and how hard to swirl, it's pretty easy. If you have very fine grit sand it can be a pain.