5 Lb Flat Glass Marbles, 500PCS Blue Mixed Color Flat Gems
Quantity 500pcs 80-100pcs 80-100pcs 80-100pcs 80-100pcs 80-100pcs 80-100pcs. Flat Glass Marbles. Yes, these glass flat marbles can be used in aquariums as decorative accents. Can these marbles be used in aquariums?.