I really want more input from Cerotank owners. I've been using a Viva Nova S with Aspire BDCs and recently ordered a batch of the non-Nautilus BVCs. As I understand it, BVCs are the way to go, but the Vivi Nova S is getting pretty outdated at this point, lacking air flow adjustment. I'm not keen on the Nautilus for a variety of reasons, but I have come across a couple of recommendations for the Cerotank which interest me. Despite what looks like a best of both world design, it looks like hardly anyone has a Cerotank. What gives? Is there something I'm missing? Why isn't this thing more popular? I'd really like to hear more about it, especially more user experience commentary. It's an Aerotank that can accept BVCs! It should be awesome but it hardly has any mentions on ECF.