To my understanding corals considered to be tri-colors are acroporas & generally it's A.valida, A.nana, A.cerealis or A.secale. In my opinion A.valida is the one most common of these to be called tri-color. It is also my understanding the Bonsai is a trade name for a "stubby" variety of A.valida that tends to stay shorter in height than other varieties with a tendancy to exhibit encrusting growth. It also tends to maintain its gorgous colors. It's one of my faves. That said, there are many so called Bonsai's out there but I would equate it with superman monti & the Real Deal superman monti. When someone makes up a non-scientific name for a particular coral they sell even though there are others that look the same but not from the same original colony they wouldn't be considered as the "same." There are many morphs & varieties of the same species so it gets complicated. Anyway long story short I would say you have a variety of Acropora valida.