I usually buy them in little boxes with 2 bones inside and typically break the bone into bits (like 8 pieces). I only toss in one piece and when that's gone, toss in another. But I have small tanks so putting in a whole bone seems 'too much'. Betty Goetz _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member