Saddleback,
Thanks bro. Actually I looked into it but wasn;t sure if it was worth the cost of the patent and legal fees. I ended up speaking with an Eheim engineer in Germany. I explained to him that an illuminated cannister filter would bring a lot of salt-water aquarists back to using cannister filters because it would allow for a place to grow macro and hold extra live rock, but wouldn't require a noisy/risky overflow. I told him that this design is absolutely perfect for running a nano reef and it would even appeal to the guy with the 200gal tank - just build the cannister body out of clear acrylic or have a window that you could see in. That would allow you to take the media baskets out if you want and make a little bio-ecosystem (like some substrate, lr, decorative macro, sponges, maybe an interesting cleanup crew). With transparant sides, it would be like having a little nano tank that you could plug right into your 200gal reef, I bet that you would spend more time looking at the cannister inside your stand than you would looking at the main display. Anyways, the guy was very interested in the idea and it sounded like they were considering giving me something for it but the Canadian headquarters took over communications because that is where I live. After getting my address and other info, I never heard from them again.
Oh well, if you ever see Eheim bring an illuminated cannister filter to market, you'll know where they got the idea. ( :
Cheers,
- Chad