Every buyer should be clear about the fact that it is with this O2 diffuser past with a possibly very quiet rippling Aquarium because it bubbles after installation tidy - what is of course clearly hear. But that can not be negative, since the lies yes in the nature of things. The installation is very simple: put together, plug, done! The price I find though a little excessive, but I prefer not ZIP code, because the parts also make a quality impression.
