I have 55lbs in a 5’x3’ 230gal… its around 1/2” so id say 55lbs minimum. If u like a heavier substrate most def. Go with 100-110lbs. They do clear spots down to bare bottom in my setup. It is eventually re covered tho also as they move around.
I have 55lbs in a 5’x3’ 230gal… its around 1/2” so id say 55lbs minimum. If u like a heavier substrate most def. Go with 100-110lbs. They do clear spots down to bare bottom in my setup. It is eventually re covered tho also as they move around.