I currently have 2 marble hatchets and I want to get 3-4 more to make a nice school. The problem is that the store I bought these 2 at are now selling dyed fish (blood parrots, classfish and tetras) and I refuse to buy from that store anymore until they stop carrying them (I will be writing them a letter and trying to contact others from this area to get them to do the same). The petsmart about 30-40 minutes away carries only silver hatchets, my question is - Will silver hatchets and marble hatchets school together or will the marbles stay together and the silvers in a completely seperate group?