Anybody know if these ornaments are 100% aquarium friendly. They seem like they would be cool decoration and they are cheap.
http://www.ebay.com/itm/Aquarium-Mo...t-/302040199597?&_trksid=p2056016.m2516.l5255

http://www.ebay.com/itm/Aquarium-Mo...t-/302040199597?&_trksid=p2056016.m2516.l5255
