I recently ran across two mushrooms that I thought were yumas, but were on the small side, like a quarter. Both of which look like yumas, but when I asked the relatively knowledgeable staff member (I know he does not know everything, but he is usually pretty good) he said they were dimple mushrooms. I also have hairy mushrooms, or Rhodactis mushrooms, in my tank. They are not like these at all. The reason for the question is both of them, a nice green one and a really nice pink and purple one, were only ten dollars apiece. The same store has also had large yumas in that they wanted $65 for in the past. Have I missed something? Are there mushrooms out there that look like yumas?