So it seems no matter how much I sand vacuum, 10 minutes later I turn around and voila tons more has settled.
It's frustrating the crap out of me cause I'm trying to keep my tank nice and clean without removing all the water each time. Yesterday, I even vacuumed, then put the tank water back in the tank running it through a coffee filter to catch all the crud and keep it from going back into my tank. I think I did this like 5 different times then I added some new water too for a small 10-20% PWC
. Today too, I vacuumed away removing 2-3 gallons (my tank's a 14). I'm filling it back up with clean water. But I looked again right now, and there's more mulm-y stuff all over the place!
I wouldn't worry about it too much except that my betta's got some fin rot so I'm trying to clean out the tank really well.