LOL, yeah mucking up the sand will release all sorts of nasties into the water. If you use a vacuum then you would just gently go over the sand surface, very gently. BUT if you have enough flow things shouldnt accumulate on the sand anyways. But the algae, yeah pull it out if you can, I sometimes use tweezers to pick up the mat, the algae comes up with a little sand but it comes up in one piece usually.
180g Reef - 60g Rimless Reef -90G FOWLR- 125g Malawi Cichlids- 40b REEF- 34g Fresh Planted-working on- 20L FOWLR- working on
I have a mix of many different saltwater fish amongst my tanks, but I love my Tangs most of all.