OK... now I can't make a damn decision, lol. I was pretty set on the Matala diffuser based on good reviews, low back pressure, and a great price. I was trying to decide between 1 - 9", 2 - 9", or the 12". Called a company and he recommended the single 12" based on my info. However, I then came came across youtube videos of a company that show many of the diffusers under water and it is very obvious the Vertex has much smaller bubbles than the Matala. So, i then have been trying to decide between a single or double Vertex. However, in many threads, including the current one at the top of this category on the forum, it seem the vertex have substantial back pressure and many get a high reading. With my pump, I'm wondering if it can handle the Vertex or if I'm forced to go with the Matala..
