[organism]

although some people have done it, it's not adviseable, since it's very hard to keep water parameters stable in a smaller tank. for every person with a story like rharr's, do keep in mind that there's 1000 people whose clams died because of the lighting, current, feeding, nutrients, and water stability issues in a tank that small. in my opinion, wait until you have a larger tank that can handle the stability of keeping a clam