Thread: how many mbuna for 75g
12-25-2007, 03:04 AM #18I am a Fish!! Wels catfish
- Join Date
- Jul 2007
no you don;t vacum into the sand as the sand is so thick that it doesn't allow food to get down to the bottom like the gravel does. So just hold the vacum a little ways above the sand and the debris will get sucked up into the vacum.
I recommend sand.